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Tshiambara P, Hoffman M, Legodi H, Balakrishna Y, Feucht U. Dietary intake and growth of HIV exposed and unexposed 6-12 months old infants in South Africa. MATERNAL & CHILD NUTRITION 2024:e13740. [PMID: 39400932 DOI: 10.1111/mcn.13740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 08/23/2024] [Accepted: 09/25/2024] [Indexed: 10/15/2024]
Abstract
Factors affecting the growth of HIV-exposed-uninfected (HEU) children are multi-factorial, with limited information available on the dietary intake from 6 months. This study compared the dietary intake, micronutrient composition of breastmilk, and growth of HEU and HIV-unexposed-uninfected (HUU) infants aged 6 and 12 months in an urban setting. A repeated cross-sectional study used structured questionnaires to collect socio-demographic, dietary intake, food group data, and anthropometric measurements in the Siyakhula study. The HEU (48%) and HUU (52%) infants were included (total n = 181). At 6 months, HEU infants had lower weight-for-age z-scores (WAZ) (-0.6 ± 1.1 vs. 0.1 ± 1.2; p < 0.001), length-for-age z-scores (-0.8 ± 1.4 vs. -0.1 ± 1.2; p < 0.001), and mid-upper-arm circumference-for-age z-scores (MUACAZ) (0.5 ± 1.1 vs. 1.0 ± 0.9; p < 0.001) than HUU infants. At 12 months, HEU infants had lower WAZ, MUACAZ, and weight-for-length z-scores compared to HUU infants (p < 0.05). Stunting was found at 6 (15%) and 12 (12%) months in HEU infants. The micronutrient composition of breastmilk fed to both groups was similar. Breastfeeding rates were lower in HEU than in HUU infants at 6 (49% vs. 64%; p = 0.005) and 12 (24% vs. 46%; p = 0.002) months. Less than 3% of HEU and HUU infants achieved minimal dietary diversity scores at 12 months. Dietary intake of fat was similar in all breastfed infants, but iron and vitamin B12 were higher in non-breastfed HEU infants at 12 months. HEU infants had lower breastfeeding rates than HUU infants. A lack of dietary diversity was found in all infants. Nutrition education and counselling in the complementary feeding phase are essential for optimal growth.
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Affiliation(s)
- Phumudzo Tshiambara
- Department of Human Nutrition, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Department of Consumer and Food Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
- Research Centre for Maternal, Fetal, Newborn and Child Health Care Strategies, University of Pretoria, Pretoria, South Africa
- Research Unit for Maternal and Infant Health Care Strategies, South African Medical Research Council, Cape Town, South Africa
| | - Marinel Hoffman
- Department of Consumer and Food Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
- Research Centre for Maternal, Fetal, Newborn and Child Health Care Strategies, University of Pretoria, Pretoria, South Africa
- Research Unit for Maternal and Infant Health Care Strategies, South African Medical Research Council, Cape Town, South Africa
| | - Heather Legodi
- Department of Human Nutrition and Dietetics, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - Yusentha Balakrishna
- Biostatistics Research Unit, South African Medical Research Council, Durban, South Africa
| | - Ute Feucht
- Research Centre for Maternal, Fetal, Newborn and Child Health Care Strategies, University of Pretoria, Pretoria, South Africa
- Research Unit for Maternal and Infant Health Care Strategies, South African Medical Research Council, Cape Town, South Africa
- Department of Paediatrics, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Smith TM, Ávila JN, Arora M, Austin C, Drake T, Kinaston R, Sudron E, Wang Y, Williams IS. Brief communication: New method for measuring nitrogen isotopes in tooth dentine at high temporal resolution. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024; 185:e24991. [PMID: 38923412 DOI: 10.1002/ajpa.24991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/13/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVES Nitrogen isotopes (δ15N) are widely used to study human nursing and weaning ages. Conventional methods involve sampling 1-mm thick sections of tooth dentine-producing an averaging effect that integrates months of formation. We introduce a novel protocol for measuring δ15N by multicollector secondary ion mass spectrometry (SIMS). MATERIALS AND METHODS We sampled dentine δ15N on a weekly to monthly basis along the developmental axis in two first molars of healthy children from Australia and New Zealand (n = 217 measurements). Nitrogen isotope ratios were determined from measurements of CN- secondary molecular ions in ~35 μm spots. By relating spot position to enamel formation, we identified prenatal dentine, as well as sampling ages over more than 3 years. We also created calcium-normalized barium and strontium maps with laser ablation-inductively coupled plasma-mass spectrometry. RESULTS We found rapid postnatal δ15N increases of ~2‰-3‰, during which time the children were exclusively breastfed, followed by declines as the breastfeeding frequency decreased. After weaning, δ15N values remained stable for several months, coinciding with diets that did not include meat or cow's milk; values then varied by ~2‰ starting in the third year of life. Barium did not show an immediate postnatal increase, rising after a few months until ~1-1.5 years of age, and falling until or shortly after the cessation of suckling. Initial strontium trends varied but both individuals peaked months after weaning. DISCUSSION Developmentally informed SIMS measurements of δ15N minimize time averaging and can be precisely related to an individual's early dietary history.
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Affiliation(s)
- Tanya M Smith
- Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Queensland, Australia
- Australian Research Centre for Human Evolution, Griffith University, Gold Coast, Queensland, Australia
| | - Janaína N Ávila
- Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Queensland, Australia
- School of the Environment, The University of Queensland, Brisbane, Queensland, Australia
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Teresa Drake
- Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Rebecca Kinaston
- Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Queensland, Australia
- BioArch South, Waitati, New Zealand
| | - Emma Sudron
- Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Queensland, Australia
- Australian Research Centre for Human Evolution, Griffith University, Gold Coast, Queensland, Australia
| | - Yue Wang
- Research School of Earth Sciences, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Ian S Williams
- Research School of Earth Sciences, The Australian National University, Canberra, Australian Capital Territory, Australia
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Moon RJ, D' Angelo S, Curtis EM, Ward KA, Crozier SR, Schoenmakers I, Javaid MK, Bishop NJ, Godfrey KM, Cooper C, Harvey NC. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial. Am J Clin Nutr 2024:S0002-9165(24)00746-9. [PMID: 39306330 DOI: 10.1016/j.ajcnut.2024.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 09/12/2024] [Accepted: 09/16/2024] [Indexed: 10/10/2024] Open
Abstract
BACKGROUND Findings from the Maternal Vitamin D Osteoporosis Study (MAVIDOS) trial demonstrated a positive effect of gestational cholecalciferol supplementation on offspring bone mineral density (BMD) at age 4 y. Demonstrating the persistence of this effect is important to understanding whether maternal vitamin D supplementation could be a useful public health strategy to improving bone health. OBJECTIVES We investigated whether gestational vitamin D supplementation increases offspring BMD at ages 6-7 y in an exploratory post-hoc analysis of an existing trial. METHODS In the MAVIDOS randomized controlled trial, pregnant females <14 wk' gestation with a singleton pregnancy and serum 25-hydroxyvitamin D 25-100nmol/l at 3 United Kingdom hospitals (Southampton, Sheffield, and Oxford) were randomly assigned to either 1000 IU/d cholecalciferol or placebo from 14 to 17-wk gestation until delivery. Offspring born at term to participants recruited in Southampton were invited to the childhood follow-up at ages 4 and 6-7 y. The children had a dual-energy X-ray absorptiometry (DXA, Hologic discovery) scan of whole-body-less-head (WBLH) and lumbar spine, from which bone area, bone mineral content (BMC), BMD, and bone mineral apparent density (BMAD) were derived. Linear regression was used to compare the 2 groups adjusting for age, sex, height, weight, duration of consumption of human milk, and vitamin D use at 6-7 y. RESULTS A total of 454 children were followed up at ages 6-7 y, of whom 447 had a usable DXA scan. Gestational cholecalciferol supplementation resulted in higher WBLH BMC [0.15 SD, 95% confidence interval (CI): 0.04, 0.26], BMD (0.18 SD, 95% CI: 0.06, 0.31), BMAD (0.18 SD, 95% CI: 0.04, 0.32), and lean mass (0.09 SD, 95% CI: 0.00, 0.17) compared with placebo. The effect of pregnancy cholecalciferol on bone outcomes was similar at ages 4 and 6-7 y. CONCLUSIONS Supplementation with cholecalciferol 1000 IU/d during pregnancy resulted in greater offspring BMD and lean mass in mid-childhood compared with placebo in this exploratory post-hoc analysis. These findings suggest that pregnancy vitamin D supplementation may be an important population health strategy to improve bone health. TRIAL REGISTRATION NUMBER This trial was registered at the ISRCTN (https://doi.org/10.1186/ISRCTN82927713) as 82927713 and EUDRACT (https://www.clinicaltrialsregister.eu/ctr-search/trial/2007-001716-23/results) as 2007-001716-23.
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Affiliation(s)
- Rebecca J Moon
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; Paediatric Endocrinology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, United Kingdom
| | - Stefania D' Angelo
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; MRC Versus Arthritis Centre for Musculoskeletal Health and Work, MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, United Kingdom
| | - Elizabeth M Curtis
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom
| | - Kate A Ward
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom
| | - Sarah R Crozier
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, United Kingdom
| | - Inez Schoenmakers
- Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - M Kassim Javaid
- NIHR Biomedical Research Centre, University of Oxford, United Kingdom; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Nicholas J Bishop
- Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, United Kingdom
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, United Kingdom
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; NIHR Biomedical Research Centre, University of Oxford, United Kingdom
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, United Kingdom.
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Reynolds CJ, Dyer RB, Oberhelman-Eaton SS, Konwinski BL, Weatherly RM, Singh RJ, Thacher TD. Sulfated vitamin D metabolites represent prominent roles in serum and in breastmilk of lactating women. Clin Nutr 2024; 43:1929-1936. [PMID: 39024772 PMCID: PMC11371494 DOI: 10.1016/j.clnu.2024.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND Concentrations of vitamin D (VitD) and 25-hydroxyvitamin D (25OHD) in breastmilk are low despite the essential role of VitD for normal infant bone development, yet additional metabolic forms of vitamin D may be present. This study evaluates the contribution of sulfated vitamin D metabolites, vitamin D3-sulfate (VitD3-S) and 25-hydroxyvitamin D3-sulfate (25OHD3-S) for lactating women and assesses the response to high-dose VitD3 supplementation. METHODS Serum and breastmilk were measured before and after 28 days with 5000 IU/day VitD3 intake in 20 lactating women. Concentrations of VitD3-S and 25OHD3-S in milk, and 25OHD2, 25OHD3, 25OHD3-S, VitD3 and VitD3-S in serum were determined by mass spectrometry. RESULTS Baseline vitamin D status was categorized as sufficient (mean ± SD serum 25OHD3 69 ± 19 nmol/L), and both serum VitD3 and 25OHD3 increased following supplementation (p < 0.001). 25OHD3-S was 91 ± 19 nmol/L in serum and 0.47 ± 0.09 nmol/L in breastmilk. VitD3-S concentrations were 2.92 ± 0.70 nmol/L in serum and 6.4 ± 3.9 nmol/L in breastmilk. Neither sulfated metabolite significantly changed with supplementation in either serum or breastmilk. CONCLUSIONS Sulfated vitamin D metabolites have prominent roles for women during lactation with 25OHD3-S highly abundant in serum and VitD3-S distinctly abundant in breastmilk. These data support the notion that 25OHD3-S and VitD3-S may have physiological relevance during lactation and nutritional usage for nursing infants.
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Affiliation(s)
| | - Roy B Dyer
- Mayo Clinic Immunochemical Core Laboratory, USA
| | | | | | | | - Ravinder J Singh
- Mayo Clinic Department of Laboratory Medicine and Pathology, USA
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Kowalcze K, Krysiak R, Gullo G, Ott J. The Course of Minipuberty in Daughters of Women with Low Gestational Vitamin D Status. Nutrients 2024; 16:2362. [PMID: 39064805 PMCID: PMC11279621 DOI: 10.3390/nu16142362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Minipuberty is a term describing temporary, sex-specific activation of the hypothalamic-pituitary-gonadal axis, which is implicated in the development of male and female genital organs. Sons of women with low vitamin D during gestation were found to be characterized by increased activity of the reproductive axis and faster postnatal growth of genital organs. The current study assesses for the first time the course of minipuberty in female descendants of women with a vitamin D deficit. The study population included three matched groups of infant girls: children born to women with vitamin D deficiency (25OHD concentration below 50 nmol/L), offspring of women with vitamin D insufficiency (25OHD concentration between 50 and 75 nmol/L), and daughters of healthy females (25OHD concentration between 75 and 150 nmol/L). Salivary concentrations of estradiol, progesterone, 17-hydroxyprogesterone and androgens, as well as urine concentrations of FSH and LH, were assayed during the first 18 months of life (once a month in the first 6 months, bimonthly between months 6 and 12, and then every three months). At each visit, beyond hormone measurements, the investigators assessed the size of reproductive organs: ovaries, uterus and breasts. In daughters of mothers with vitamin D deficiency, concentrations of FSH, LH and estradiol were higher and detectable for a longer period of time, while ovarian volume, uterine length and breast diameter were greater than in the remaining groups. Children born to women with vitamin D insufficiency were characterized by higher FSH levels than daughters of healthy females, though the detection period was the same, and both groups differed in breast diameter. These findings suggest that low vitamin D status during gestation leads to more pronounced and longer-lasting activation of the reproductive axis, and is associated with increased dimensions of sexual organs, the magnitude of which depends on the degree of vitamin D deficit.
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Affiliation(s)
- Karolina Kowalcze
- Department of Patophysiology, Faculty of Medicine, Academy of Silesia, Rolna 43, 40-555 Katowice, Poland
- Department of Pediatrics in Bytom, Faculty of Health Sciences in Katowice, Medical University of Silesia, Stefana Batorego 15, 41-902 Bytom, Poland
| | - Robert Krysiak
- Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Medyków 18, 40-752 Katowice, Poland;
| | - Giuseppe Gullo
- Department of Obstetrics and Gynecology, Villa Sofia Cervello Hospital, University of Palermo, 90146 Palermo, Italy;
| | - Johannes Ott
- Clinical Division of Gynecologic Endocrinology and Reproductive Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, 1090 Vienna, Austria;
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Rios-Leyvraz M, Martino L, Cashman KD. The Relationship Between Vitamin D Intake and Serum 25-hydroxyvitamin D in Young Children: A Meta-Regression to Inform WHO/FAO Vitamin D Intake Recommendations. J Nutr 2024; 154:1827-1841. [PMID: 38685317 PMCID: PMC11217029 DOI: 10.1016/j.tjnut.2024.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND This work was commissioned by the World Health Organization and Food and Agriculture Organization to inform their update on the vitamin D requirements for children aged <4 y. OBJECTIVES The objective of this work was to undertake multilevel and multivariable dose-response modeling of serum 25-hydroxyvitamin D (25OHD) to total vitamin D intake in children aged <4 y with the goal of deriving updated vitamin D requirements for young children. METHODS Systematically identified randomized controlled trials among healthy children from 2 wk up to 3.9 y of age provided with daily vitamin D supplements or vitamin D-fortified foods were included. Linear and nonlinear random effects multilevel meta-regression models with and without covariates were fitted and compared. Interindividual variability was included by simulating the individual serum 25OHD responses. The percentage of individuals reaching set minimal and maximal serum 25OHD thresholds was calculated and used to derive vitamin D requirements. RESULTS A total of 31 trials with 186 data points from North America, Europe, Asia, and Australasia/Oceania, with latitudes ranging from 61°N to 38°S, and with participants of likely mostly light or medium skin pigmentation, were included. In 29 studies the children received vitamin D supplements and in 2 studies the children received vitamin D-fortified milk with or without supplements. The dose-response relationship between vitamin D intake and serum 25OHD was best fitted with the unadjusted quadratic model. Adding additional covariates, such as age, did not significantly improve the model. At a vitamin D intake of 10 μg/d, 97.3% of the individuals were predicted to achieve a minimal serum 25OHD threshold of 28 nmol/L. At a vitamin D intake of 35 μg/d, 1.4% of the individuals predicted to reach a maximal serum 25OHD threshold of 200 nmol/L. CONCLUSIONS In conclusion, this paper details the methodological steps taken to derive vitamin D requirements in children aged <4 y, including the addition of an interindividual variability component.
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Affiliation(s)
- Magali Rios-Leyvraz
- Consultant, Department of Nutrition and Food Safety, WHO, Geneva, Switzerland.
| | - Laura Martino
- Department of Risk Assessment Services, Methodology and Scientific Support Unit, European Food Safety Authority, Parma, Italy
| | - Kevin D Cashman
- Department of Medicine, Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
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Shawahna R, Abdi A, Bani-Odeh D, Saleh R, Owiwi L, Maqboul I, Hijaz H, Jaber M. Breastmilk calcium concentrations in Palestinian lactating women. Acta Paediatr 2024; 113:1315-1321. [PMID: 38482983 DOI: 10.1111/apa.17204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 07/11/2024]
Abstract
AIM Breastmilk calcium concentrations can vary between lactating women and over the lactation period. This study assessed breastmilk calcium concentrations among Palestinian lactating women. METHODS The demographic and dietary variables of the lactating women were collected using a questionnaire. The women provided a sample of about 5 mL of breastmilk using hand expression. Breastmilk calcium concentrations were quantified using an inductively coupled plasma-mass spectrometric method. RESULTS Breastmilk samples were taken from 240 lactating women. The mean breastmilk calcium concentration was 285.4 ± 115.1 mg/L. Lower breastmilk calcium concentrations were associated with age, lactating period, unemployment, dissatisfaction with income and insufficient consumption of vitamins and minerals. CONCLUSION Breastmilk calcium concentrations were affected by demographic variables of the lactating women and insufficient consumption of vitamins and minerals. The findings reported in this study are informative to healthcare providers and decision makers who might be interested in improving the health of lactating women and their infants.
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Affiliation(s)
- Ramzi Shawahna
- Department of Physiology, Pharmacology and Toxicology, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- Clinical Research Center, An-Najah National University Hospital, Nablus, Palestine
| | - Aya Abdi
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Diana Bani-Odeh
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Rana Saleh
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Lina Owiwi
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Iyad Maqboul
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- An-Najah National University Hospital, Nablus, Palestine
| | - Hatim Hijaz
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- An-Najah National University Hospital, Nablus, Palestine
| | - Mohammad Jaber
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- An-Najah National University Hospital, Nablus, Palestine
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Szyller H, Antosz K, Batko J, Mytych A, Dziedziak M, Wrześniewska M, Braksator J, Pytrus T. Bioactive Components of Human Milk and Their Impact on Child's Health and Development, Literature Review. Nutrients 2024; 16:1487. [PMID: 38794725 PMCID: PMC11124180 DOI: 10.3390/nu16101487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
The composition of human breast milk is an ideal combination of substances necessary for the healthy development of an infant's body while protecting from pathogens and the balanced development of the microbiota. Its composition is dynamic and changes with the age of the child, meeting their current needs. The study provides a thorough overview of human milk components, such as immunological components, growth factors, hormones, carbohydrates, lipids, minerals, and vitamins. Authors focus on capturing the most important aspects of the effects of these substances on a newborn's body, while also looking for specific connections and describing the effects on given systems. Supplementation and the use of ingredients are also discussed. The purpose of this paper is to present the current state of knowledge about the bioactive components of human milk and their impact on the growth, development, and health of the young child.
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Affiliation(s)
- Hubert Szyller
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Katarzyna Antosz
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Joanna Batko
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Agata Mytych
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Marta Dziedziak
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Martyna Wrześniewska
- Student Scientific Group of Pediatric Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland; (K.A.); (J.B.); (A.M.); (M.D.); (M.W.)
| | - Joanna Braksator
- 2nd Clinical Department of Paediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wrocalw, Poland; (J.B.); (T.P.)
| | - Tomasz Pytrus
- 2nd Clinical Department of Paediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wrocalw, Poland; (J.B.); (T.P.)
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Weiler HA, Rana H, McCrea J, Loukine L, Bonvalot Y, Nguyen L, Hopperton K, Cooper M, Bertinato J, Vercammen K, Luo W, Nicholson C, Yuan J, Brule S. Adherence to Vitamin D Supplementation Recommendations for Breastfed Infants and Young Children: An Analysis of Canadian Community Health Survey Data Cycles From 2015 to 2018. J Nutr 2024; 154:1665-1675. [PMID: 38527736 DOI: 10.1016/j.tjnut.2024.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND In Canada, nutrition policy, as outlined in the Nutrition for Healthy Term Infants recommendations, includes a daily vitamin D supplement of 10 μg (400 IU) for breastfed infants and young children to support adequate vitamin D status. OBJECTIVES This study aimed to report on adherence to vitamin D supplementation recommendations for breastfed infants (≤12 months); and for children breastfed >12 mo. METHODS Canadian Community Health Survey (paired-cycles 2015/2016 and 2017/2018) maternal experiences data for infants born 2012-2018 who received any breastmilk formed the sample (n = 7079). Whether the infant was given a vitamin D supplement (yes/no) and the frequency (daily/almost every day, 1-2/wk, or <1/wk) were surveyed. Weighted data (95% CI) were summarized according to breastfeeding history (exclusive to 6 mo and continuing; partial to 6 mo and continuing; and stopped ≤6 mo). Correlates of supplement adherence were explored using logistic regression. RESULTS Overall, 87.1% (95% CI: 85.9%, 88.3%) of participants reported giving their infant (≤12 mo) a vitamin D supplement, and of these, 83.3% (95% CI: 81.9%, 84.7%) did so daily/almost every day, 12.4% (95% CI: 11.1%, 13.7%) did so 1-2/wk, and 4.3% (95% CI: 3.6%, 5.0%) did so <1/wk. Lower adjusted odds of adherence were observed among participants reporting: stopped breastfeeding ≤6 mo, lower education or income, recent immigration, and overweight prepregnancy body mass index; higher odds of adherence were observed in the western provinces. Regarding mothers of children >12 mo and breastfed (n = 2312), 58.0% (95% CI: 54.9%, 61.1%) gave a vitamin D supplement daily/almost every day. CONCLUSIONS Adherence to providing a vitamin D supplement to breastfed infants is high in Canada. Nonetheless, we estimate that ∼27% of mothers are nonadherent to daily/almost every day administration of a vitamin D supplement and that adherence declines in children breastfed >12 mo. Further promotion to support uptake of the current guidance may be necessary, particularly for parents of recent immigration or lower socioeconomic status.
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Affiliation(s)
- Hope A Weiler
- Nutrition Research Division, Bureau of Nutritional Sciences, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada.
| | - Huma Rana
- Office of Nutrition Policy and Promotion, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Jennifer McCrea
- Office of Nutrition Policy and Promotion, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Lidia Loukine
- Bureau of Food Surveillance and Science Integration, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Yvette Bonvalot
- Bureau of Food Surveillance and Science Integration, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Loan Nguyen
- Bureau of Food Surveillance and Science Integration, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Kathryn Hopperton
- Nutrition Research Division, Bureau of Nutritional Sciences, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Marcia Cooper
- Nutrition Research Division, Bureau of Nutritional Sciences, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Jesse Bertinato
- Nutrition Research Division, Bureau of Nutritional Sciences, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Kelsey Vercammen
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Wei Luo
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Carley Nicholson
- Maternal and Child Health Unit, Centre for Health Promotion, Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Jane Yuan
- Centre for Population Health Data, Statistics Canada, Ottawa, Ontario, Canada
| | - Shawn Brule
- Centre for Population Health Data, Statistics Canada, Ottawa, Ontario, Canada
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10
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Zielinska-Pukos MA, Michalska-Kacymirow M, Kurek E, Bulska E, Grabowicz-Chądrzyńska I, Wesołowska A, Hamulka J. Breastmilk mineral composition among well-educated mothers from Central Poland - Associations with maternal dietary intake, dietary patterns and infant psychomotor development. J Trace Elem Med Biol 2024; 83:127393. [PMID: 38271826 DOI: 10.1016/j.jtemb.2024.127393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/18/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND Maternal dietary habits could affect breastmilk mineral composition, which may influence infant development. Mineral dietary intake or supplementation slightly affects its breastmilk concentration. However, the intake of selected food groups or dietary patterns that reflect diet complexity could have a greater impact. Hence, the aim of the study was to assess breastmilk mineral composition at one, three, and six months of lactation among mothers living in urban area of Central Poland, as well as the evaluate maternal dietary determinants and associations with infant anthropometric and psychomotor development. METHODS The study was conducted among 43 healthy and exclusively breastfeeding mothers. In the first, third, and sixth months of lactation, we collected breastmilk samples and assessed the concentration of Ca, P, Zn, Fe, Se, Ni, As, Pb, and Cd using the ICP-MS method. Maternal dietary habits were evaluated by a food frequency questionnaire in the first month of lactation, whereas in the third and sixth by the three-day food record. Based on the collected data adherence to the Polish-adapted Mediterranean (Pl-aMED; 1 month) and the DASH diet (Mellen's Index; 3 and 6 months) was assessed. In the third and sixth months of lactation infant anthropometric parameters and the sixth month of lactation psychomotor development were evaluated. RESULTS Breastmilk Se, Ni, As, Pb, and Cd levels were under the LOQ in all the breastmilk samples at all study visits. Median breastmilk mineral concentrations of Ca, P, Zn, and Fe in the first, third, and sixth months of lactation varied from 381.9 to 332.7 mg/L, 161.6 to 139.1 mg/L, 2.2 to 0.8 mg/L, and 0.26 to 0.17 mg/L, respectively. Maternal dietary intake and supplementation did not affect breastmilk Ca, P, Zn, and Fe. Pl-aMED scores were associated with breastmilk Ca (β = 0.489, 95% CI 0.180 - 0.799, p = 0.003) and Zn (β = 0.499, 95% CI 0.199 - 0.798, p = 0.002) in the first month of lactation, whereas no association with the DASH diet were observed in the third and sixth month of lactation. Breastmilk Fe in the third month was associated with infant motor development (β = 0.420, 95% CI 0.113 - 0.727, p = 0.009) in the sixth month of life, but no other associations with anthropometric or psychomotor development were observed. Moreover, we estimated that few infants meet their adequate intake (AI) requirements for P, Zn, and Fe. CONCLUSION Our study showed that maternal adherence to Pl-aMED is a significant predictor of breastmilk Ca and Zn in the first month of lactation, which may be especially important considering that more than 75% of infants had inadequate Zn intake. Moreover, we found that breastmilk Fe positively influenced infant motor development, despite the majority of infants having inadequate intake. On the other hand, no infant had deficiency symptoms, which emphasizes the necessity to evaluate of AI norms for infants.
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Affiliation(s)
- Monika A Zielinska-Pukos
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), Nowoursynowska St. 159c, 02-776 Warsaw, Poland.
| | - Magdalena Michalska-Kacymirow
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury St. 101, 02-089 Warsaw, Poland
| | - Eliza Kurek
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury St. 101, 02-089 Warsaw, Poland
| | - Ewa Bulska
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury St. 101, 02-089 Warsaw, Poland
| | | | - Aleksandra Wesołowska
- Department of Medical Biology, Laboratory of Human Milk and Lactation Research at Regional Human Milk Bank in Holy Family Hospital, Faculty of Health Sciences, Medical University of Warsaw, 14/16 Litewska St., 00-575 Warsaw, Poland
| | - Jadwiga Hamulka
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), Nowoursynowska St. 159c, 02-776 Warsaw, Poland
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11
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Reynolds CJ, Dyer RB, Vizenor BA, Koszewski NJ, Singh RJ, Thacher TD. Analysis of vitamin D 3-sulfate and 25-hydroxyvitamin D 3-sulfate in breastmilk by LC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1232:123954. [PMID: 38101284 PMCID: PMC10872384 DOI: 10.1016/j.jchromb.2023.123954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/17/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Sulfated metabolites of vitamin D have been suggested to be in breastmilk, although current methods to measure sulfated vitamin D compounds in breastmilk by liquid chromatography-tandem mass spectrometry (LC-MS/MS) have not adequately accounted for increased aqueous solubility of these sulfated metabolites. The purpose of this study was to generate a method of LC-MS/MS for measuring vitamin D3-3-sulfate (VitD3-S) and 25-hydroxyvitamin D3-3-sulfate (25OHD3-S) specifically in human breastmilk. The resulting method uses methanol to precipitate protein and solid phase extraction to prepare the samples for LC-MS/MS. The limits of quantification for analytes in solvent were 0.23 ng/mL VitD3-S and 0.2 ng/mL 25OHD3-S. Various experiments observed concentrations ranging 0.53 to 1.7 ng/mL VitD3-S and ≤ 0.29 ng/mL 25OHD3-S. Both analytes were present in aqueous skim milk, demonstrating the enhanced aqueous solubility of these vitamin D sulfates. In conclusion, we describe an effective method for measuring VitD3-S and 25OHD3-S in breastmilk by LC-MS/MS.
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Affiliation(s)
- Carmen J Reynolds
- Mayo Clinic Department of Physiology & Biomedical Engineering, 200 First St. SW, Rochester, MN 55905 USA.
| | - Roy B Dyer
- Mayo Clinic Department of Laboratory Medicine & Pathology, 200 First St. SW, Rochester, MN 55905 USA
| | - Brady A Vizenor
- Mayo Clinic Department of Laboratory Medicine & Pathology, 200 First St. SW, Rochester, MN 55905 USA
| | | | - Ravinder J Singh
- Mayo Clinic Department of Laboratory Medicine & Pathology, 200 First St. SW, Rochester, MN 55905 USA
| | - Tom D Thacher
- Mayo Clinic Department of Family Medicine, 200 First St. SW, Rochester, MN 55905 USA
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12
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Jones KS, Meadows SR, Koulman A. Quantification and reporting of vitamin D concentrations measured in human milk by LC-MS/MS. Front Nutr 2023; 10:1229445. [PMID: 38035362 PMCID: PMC10687194 DOI: 10.3389/fnut.2023.1229445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 10/20/2023] [Indexed: 12/02/2023] Open
Abstract
Vitamin D is essential for optimal bone health, and vitamin D deficiency has been associated with an increased risk of adverse pregnancy, growth and developmental outcomes. In early life, and in the absence of endogenous vitamin D production from UVB light, infants are reliant on vitamin D stores established in utero and the vitamin D supply from human milk (HM). However, comprehensive data on vitamin D in HM is lacking. Thus, in this review we explore the application of liquid-chromatography tandem mass spectrometry (LC-MS/MS) to the assessment of vitamin D in HM. We discuss the challenges of extracting and measuring multiple vitamin D metabolites from HM including the frequent requirement for a large sample volume, and inappropriate poor sensitivity. Shortcomings in the reporting of experimental procedures and data analysis further hinder advances in the field. Data collated from all studies that have applied LC-MS/MS reveal that, in general, cholecalciferol concentration is greater and more variable than 25-hydroxyvitamin D concentration, and that the vitamin D content of HM is low and less than the currently recommended dietary requirement of infants, although maternal supplementation can increase the vitamin D content of HM. Improvements in analytical methods and their validation and larger, more representative studies are required to better characterize HM milk vitamin D metabolite concentrations and their relationship with maternal status. These data are essential to understand relationships with infant health and to inform public health policies around vitamin D fortification and supplementation.
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Affiliation(s)
- Kerry S. Jones
- Nutritional Biomarker Laboratory, MRC Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
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13
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Vass RA, Mikó É, Gál C, Kőszegi T, Vass CI, Bokor S, Molnár D, Funke S, Kovács K, Bódis J, Ertl T. The Effect of Holder Pasteurization and Different Variants on Breast Milk Antioxidants. Antioxidants (Basel) 2023; 12:1857. [PMID: 37891936 PMCID: PMC10604438 DOI: 10.3390/antiox12101857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/28/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND After birth, breast milk (BM) is a known essential source of antioxidants for infants. We analyzed the non-enzymatic total antioxidant capacity (TAC), oxygen radical absorbance capacity (ORAC), and glutathione, calcium, transferrin, and total protein levels of human breast milk before and after Holder pasteurization (HoP). METHODS The collected donor BM samples were pasteurized with HoP. RESULTS HoP decreased TAC (-12.6%), ORAC (-12.1%), transferrin (-98.3%), and total protein (-21.4%) levels; HoP did not influence the glutathione concentration, and it increased the total calcium (+25.5%) concentration. Mothers who gave birth via Cesarean section had significantly lower TAC in their BM. TAC and glutathione levels were elevated in the BM of mothers over the age of 30. BM produced in the summer had higher glutathione and calcium levels compared to BM produced in the winter. The glutathione concentration in term milk samples was significantly higher in the first two months of lactation compared to the period between the third and sixth months. The transferrin level of BM for female infants was significantly higher than the BM for boys, and mothers with a BMI above 30 had increased transferrin in their samples. CONCLUSIONS Antioxidant levels in human milk are influenced by numerous factors. Environmental and maternal factors, the postpartum age at breast milk collection, and Holder pasteurization of the milk influence the antioxidant intake of the infant.
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Affiliation(s)
- Réka Anna Vass
- Department of Obstetrics and Gynecology, Medical School University of Pécs, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Obstetrics and Gynecology, Magyar Imre Hospital, 8400 Ajka, Hungary
| | - Éva Mikó
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Department of Microbiology, Medical School University of Pécs, 7624 Pécs, Hungary
| | - Csenge Gál
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
| | - Tamás Kőszegi
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Department of Laboratory Medicine, Medical School University of Pécs, 7624 Pécs, Hungary
| | - Csaba I Vass
- Obstetrics and Gynecology, Magyar Imre Hospital, 8400 Ajka, Hungary
| | - Szilvia Bokor
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Department of Pediatrics, Medical School University of Pécs, 7624 Pécs, Hungary
| | - Dénes Molnár
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Department of Pediatrics, Medical School University of Pécs, 7624 Pécs, Hungary
| | - Simone Funke
- Department of Obstetrics and Gynecology, Medical School University of Pécs, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
| | - Kálmán Kovács
- Department of Obstetrics and Gynecology, Medical School University of Pécs, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
| | - József Bódis
- Department of Obstetrics and Gynecology, Medical School University of Pécs, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- HUN-REN-PTE Human Reproduction Research Group, 7624 Pécs, Hungary
| | - Tibor Ertl
- Department of Obstetrics and Gynecology, Medical School University of Pécs, 7624 Pécs, Hungary
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
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14
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Purkiewicz A, Stasiewicz M, Nowakowski JJ, Pietrzak-Fiećko R. The Influence of the Lactation Period and the Type of Milk on the Content of Amino Acids and Minerals in Human Milk and Infant Formulas. Foods 2023; 12:3674. [PMID: 37835327 PMCID: PMC10572789 DOI: 10.3390/foods12193674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
(1) Background: This study investigated the effect of the lactation period and the type of infant formula on the content of amino acids and selected minerals in an infant's food; (2) Methods: The study material consisted of breast milk (colostrum, n = 38; transitional milk, mature milk, n = 38) and three types of infant formulas (for first and follow-on feeding). Amino acid content was determined using an automatic amino acid analyzer, while minerals were determined by the atomic absorption spectrometry (AAS) technique; (3) Results: Breast milk and infant formulas contained a full range of essential amino acids. In most cases, the content of individual amino acids and minerals decreased with increasing lactation. In infant formulas, there were higher contents of phenylalanine, glutamic acid, proline, serine, and tyrosine in follow-on milk (p < 0.05). The EAA/TAA ratio in breast milk and infant formulas was similar, but the milk differed in their qualitative composition. Infant formulas contained levels of individual minerals that were several times higher-especially Mg, Ca, Mn, and Fe.; (4) Conclusions: Colostrum is more concentrated, and the level of amino acids and minerals is higher in it; as the milk matures, it decreases. In most cases, the content of individual amino acids and minerals is higher in infant formulas than in human milk, which is established through strict Codex Alimentarius procedures to ensure the proper development of infants.
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Affiliation(s)
- Aleksandra Purkiewicz
- Department of Commodity Science and Food Analysis, Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland;
| | - Małgorzata Stasiewicz
- Department of Animal Nutrition and Feed Management, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland;
| | - Jacek J. Nowakowski
- Department of Ecology and Environmental Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland;
| | - Renata Pietrzak-Fiećko
- Department of Commodity Science and Food Analysis, Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland;
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