Sensory analysis of formulations containing whey protein to individuals undergoing bariatric and metabolic surgery

BACKGROUND

Individuals undergoing bariatric surgery often have inadequate protein intake, which can cause loss of lean body mass, low level of physical activity and sarcopenia. The whey protein supplement is the most suitable in this situation, however there is a low adherence to long-term use due to the palatability and monotony of the recipes. The aim this study was to analyze the acceptability of recipes containing whey-based protein supplements in individuals undergoing bariatric and metabolic surgery.

METHODS

An on-demand sampling was performed, through a prospective, experimental study, with individuals undergoing bariatric surgery, treated by a multidisciplinary team, in a clinic located in São Paulo, Brazil. The study excluded: individuals with possible changes in taste during the sensory testing period. The study was divided into selection of recipes containing whey proteins, recruitment of tasters, sensory and chemical analysis of the recipes.

RESULTS

The sample consisted of 40 tasters, adults, and elderly, who underwent bariatric and metabolic surgery, with a median of eight years of surgery, who had previously consumed a supplement. These individuals were subjected to sensory analysis of six recipes with fresh and minimally processed foods, plus protein supplement. All recipes had food acceptance above 78% and the chemical analysis of the recipes showed an average of 13 g of protein per serving.

CONCLUSION

There was favorable acceptance of recipes with whey proteins, which places them as good dietary alternatives for the prevention of sarcopenia and weight relapse in individuals undergoing bariatric and metabolic surgery.

Vitamin D deficiency in bedridden elderly people at home

OBJECTIVE

The aim of this study was to evaluate serum 25(OH)D concentrations in the homebound elderly people and relate them to level of dementia, nutritional risk, and route of dietary administration.

METHODS

This is a cross-sectional study involving 207 bedridden elderly people assisted by the Home Care Service in the city of Santo André - SP, from June to December 2016. The following factors were evaluated: dietary intake of vitamin D, arm circumference, triceps skin fold thickness, calf circumference, nutritional risk by Mini-Nutritional Assessment, level of dementia by the adapted Clinical Dementia Rating questionnaire, and laboratory tests such as serum concentrations of 25(OH)D, ultrasensitive C-reactive protein, alkaline phosphatase, serum calcium, and parathormone.

RESULTS

The mean age of the elderly people was 81.6 (9.2) years. Deficiency of 25(OH)D was observed in 76.3% of the elderly people. There was an inverse correlation between serum concentrations of 25(OH)D: parathormone (r=-0.418, p<0.001) and alkaline phosphatase (r=-0.188, p=0.006) and a direct correlation with serum calcium (r=-0.158, p=0.022). Logistic regression showed that vitamin D deficiency was directly and independently associated with oral feeding (odds ratio 7.71; 95%CI 2.91-20.40).

CONCLUSION

Bedridden households showed high prevalence of vitamin D deficiency without association with nutritional risk and level of dementia. Oral diet was associated with vitamin D deficiency, possibly due to low consumption of source foods.

Impacto de dois programas de educação nutricional sobre o risco cardiovascular em pacientes hipertensos e com excesso de peso

OBJETIVO:Comparar os efeitos de dois protocolos de um programa de intervenção nutricional sob o risco cardiovascular em pacientes hipertensos e com excesso de peso em uso de medicamentos usual. Os pacientes foram acompanhados no Ambulatório de Hipertensão e Metabologia Cardiovascular, Universidade Federal de São Paulo. MÉTODOS:A população do estudo foi constituída por 63 pacientes hipertensos e com excesso de peso [índice de massa corporal >27 e <39kg/m²], com a média de idade de M=55,7, DP=6,1 anos; 12 homens e 51 mulheres, divididos em dois grupos de acordo com a freqüência das visitas, a cada cinco semanas (G35 n=25) ou a cada duas semanas (G14 n=38), durante 20 semanas. Os dois grupos foram submetidos a um programa de intervenção nutricional que englobou atendimentos em grupos, nos quais foram abordados conceitos de alimentação saudável. No início e no término do período do estudo, todos os pacientes foram submetidos a medidas de pressão arterial, avaliação antropométrica e avaliação laboratorial para cálculo do Risco Coronariano de Framingham. RESULTADOS:Ao término do estudo, foi observada redução no índice de massa corporal, na circunferência da cintura (M=102,9, DP=9,7cm vs M=101,8, DP=7,6cm NS), na pressão arterial sistólica (M=139,7, DP=12,4mmHg vs M=134,8, DP=8,2mmHg NS), no colesterol total sérico (M=192,9, DP=35,7mg/dL vs M=195,2, DP=37,8mg/dL NS), no consumo energético referido (M=1759,5, DP=385,8Kcal vs M=1858,7, DP=452,8kcak NS) e no RCF (M=11,1, DP=6,1 vs M=9,4, DP=3,5 NS). CONCLUSÃO:A intervenção nutricional educativa de curto prazo, se mostrou eficaz para redução do risco cardiovascular em pacientes hipertensos e com excesso de peso. Em relação a freqüência das visitas, pôde-se verificar que a visita mensal já produz resultados positivos no sentido de modificar os hábitos alimentares e reduzir o risco cardiovascular.