Comparison of intake of food groups between participants with normoglycemia, impaired fasting glucose, and type 2 diabetes in PURE Poland population

Comparison of food intake pattern of diabetic patients and healthy individuals in a sample of Saudi population: a case-control study

BACKGROUND

There has been a significant rise in the number of individuals diagnosed with type 2 diabetes mellitus (T2DM), with the condition reaching epidemic proportions globally. This study examined the dietary pattern of a sample of Saudi Arabian adults with T2DM compared to control non-diabetics.

METHODS

Data from 414 participants, 207 control and 207 T2DM was analyzed. Anthropometric measurements, foods intake such as vegetables, fruits, whole grains, fried foods, sweetened juice, sweets, and pastries consumption as well as physical activity were obtained by an interview-survey.

RESULTS

The consumption of vegetables, green and leafy vegetables, starchy vegetables, fruits, proteins, and milk was significantly higher in the diabetics (p< 0.0001 for all and p<0.01 for starchy vegetables). Of the case group, 79.7% of them consumed whole-wheat bread while 54.6% of them consumed low fat milk (p<0.0001). There was a significant decrease in the percentage of cases who consumed discretionary foods and sweetened juices and soft drinks (24.1%), avoided sweets (75.8%) and pastries (37.1%), (p<0.0001). There were also significant increases in the percentages of participants who use healthy fat (as olive oil) in the case group (78.7%) (p<0.001). There was a significant increase in the percentage of diabetics who followed a diet to lose weight (15%) (p<0.05). The majority of the two study groups were physically inactive (control 95.2% & case 94.2%).

CONCLUSIONS

The results of this study provide insight on that diabetics generally follow a healthy diet, yet their engagement in physical activity may not be optimal.

Dietary Inflammatory Index (DII)® and Metabolic Syndrome in the Selected Population of Polish Adults: Results of the PURE Poland Sub-Study

The aim of the study was to assess the relationship between the inflammatory potential of the diets of residents of Lower Silesia, based on the Dietary Inflammatory Index (DII), with the incidence of metabolic syndrome (MetS) and its components. Diets were characterized according to DII terciles. The study group consisted of 1570 individuals enrolled in the Polish arm of the Prospective Urban and Rural Epidemiological (PURE) study. Participants’ diets in DII T1 (most anti-inflammatory diet) had the highest intake of vegetables (except for potatoes), fruits, nuts and seeds, low-calorie beverages, tea, and coffee (all p < 0.001). On the other hand, participants’ diets in DII T3 (most pro-inflammatory diet) contained a lot of whole-fat products, refined cereals, fats (except for vegetable oils), fruit juices, red meat, processed meat/meat products, sugar-sweetened beverages, sweets, sugar, and honey (all p < 0.001). Overall, we did not find an increased prevalence of MetS and its individual components in DII tercile 3 (T3) compared to DII tercile 1 (T1), except for an increased prevalence of abnormal TG in DII T3 compared to T1 (OR 1.34; 95% CI = 1.01 to 1.78) in the crude model. In the adjusted model, a lower prevalence of abnormal fasting glucose (FG) was found in DII T2 compared to DII T1 (OR 0.71; 95% CI = 00.54 to 0.94). Results of this study are informative and provide an important basis for further research on the quality of diet and nutrition.

The suitability, acceptability, and feasibility of a culturally contextualized low-calorie diet among women at high risk for diabetes mellitus in Kerala: a mixed-methods study

Background

Nutritional therapy has been conventionally recommended for people with prediabetes as a method to delay or halt progression to type 2 diabetes mellitus (T2DM). The extensive diversity in food culture and habits in India pose a challenge in devising a uniform low-calorie diet plan. Though there are a number of studies related to different diet therapies, there exists limited evidence on culturally contextualized low-calorie diet plans and their process in India. The objective of the study is to test the suitability, acceptability, and feasibility of a culturally contextualized low-calorie diet among women with high risk for T2DM in Kerala.

Method

We employed a four-stage equal-status sequential design for this study. Firstly, in-depth interviews (n = 10) were conducted to understand the modifiable and non-modifiable components of the usual diet for diabetes prevention. Secondly, we developed a low-calorie diet plan (1500 kcal per day) based on the local preferences and availability. Thirdly, we piloted the diet plan among 18 individuals in the community to know its acceptability. Fourthly, in-depth interviews were done (n = 4) among pilot participants to understand the feasibility of pursuing it through facilitators and barriers to implementing the diet plan.

Results

Low-calorie diet plan was suitable for this setting as the burden of diabetes is very high and the diet plan had dietary components similar to the usual diet. Though participants had an intrinsic motivation to follow a healthy lifestyle, several systemic challenges such as the high cost of healthy foods options (fruits and vegetables), rice addiction, and food preferences driven by peer pressure act as hurdles.

Conclusion

Apart from culturally contextualizing the low-calorie diet, it is important that complementary strategic measures such as reorientation of the public distribution system and subsidizing fruit and vegetable production and cost are required for the suitability, acceptability, and feasibility of implementation.

Supplementary Information

The online version contains supplementary material available at 10.1007/s13410-022-01134-8.

Neighborhood Greenspace and Socioeconomic Risk are Associated with Diabetes Risk at the Sub-neighborhood Scale: Results from the Prospective Urban and Rural Epidemiology (PURE) Study

Greenspace and socioeconomic status are known correlates of diabetes prevalence, but their combined effects at the sub-neighborhood scale are not yet known. This study derives, maps, and validates a combined socioeconomic/greenspace index of individual-level diabetes risk at the sub-neighborhood scale, without the need for clinical measurements. In two Canadian cities (Vancouver and Hamilton), we computed 4 greenspace variables from satellite imagery and extracted 11 socioeconomic variables from the Canadian census. We mapped 5125 participants from the Prospective Urban and Rural Epidemiology Study by their residential address and used age- and sex-dependent walking speeds to estimate individual exposure zones to local greenspace and socioeconomic characteristics, which were then entered into a principal component analysis to derive a novel diabetes risk index (DRI-GLUCoSE). We mapped index scores in both study areas and validated the index using fully adjusted logistic regression models to predict individual diabetes status. Model performance was then compared to other non-clinical diabetes risk indices from the literature. Diabetes prevalence among participants was 9.9%. The DRI-GLUCoSE index was a significant predictor of diabetes status, exhibiting a small non-significant attenuation with the inclusion of dietary and physical activity variables. The final models achieved a predictive accuracy of 75%, the highest among environmental risk models to date. Our combined index of local greenspace and socioeconomic factors demonstrates that the environmental component of diabetes risk is not sufficiently explained by diet and physical activity, and that increasing urban greenspace may be a suitable means of reducing the burden of diabetes at the community scale.

Effectiveness and implementation of a lifestyle modification intervention for women with isolated impaired fasting glucose: Study protocol for a hybrid type 2 study in Kerala, India

Background: Isolated impaired fasting glucose (i-IFG) constitutes a major group in the prediabetic spectrum among Indians, and thus it is imperative to identify effective diabetes prevention strategies. This study aims to evaluate the effects of an intensive community-based lifestyle modification program on regression to normoglycemia among women with i-IFG, compared to a control group at 24 months. The study also aims to evaluate the implementation of the intervention, via both process and implementation outcomes. Methods: We will use a hybrid design (Effectiveness-implementation hybrid type 2 trial) to test the effectiveness and implementation of the lifestyle modification intervention. Effectiveness is evaluated using a randomized controlled trial among 950 overweight or obese women, aged 30 to 60 years, with i-IFG on an oral glucose tolerance test in the Indian state of Kerala. The intervention involves an intensive lifestyle modification program through group and individually mentored sessions using behavioural determinants and behavioural change techniques.  The intervention group will receive the intervention for a period of 12 months and the control group will receive general health advice through a health education booklet. Data on behavioural, clinical, and biochemical measures will be collected using standard methods at 12 and 24 months. The primary outcome will be regression to normoglycemia at 24 months, as defined by the American Diabetes Association criteria. Discussion: This study will provide the first evidence on the effects of lifestyle interventions on regression to normoglycemia in people with i-IFG among Indians. CTRI registration: CTRI/2021/07/035289 (30/07/2021).

Contemporary Trends and Habits in the Consumption of Sugar and Sweeteners-A Questionnaire Survey among Poles

The purpose of the paper was a cross sectional study to evaluate the use of sugars and selected sweeteners by Polish consumers in their diet. The survey was conducted using the direct interview method on the group of 2000 adults declaring the consumption of sugar or sweeteners. The ANOVA test and multi-dimensional cluster analysis was used to the data interpretation (p < 0.05). It was stated that the consumption of sugar among consumers remained at a high level. Respondents declared taking up the activities towards reducing sugar intake in their diet mostly due to health-related reasons. It was emphasized in particular by women taking part in the survey. The most frequent way to limit the amount of sugar in the diet consisted in choosing sweeteners, mainly stevia and xylitol. However, the knowledge concerning steviol glycosides among the consumers was not extensive. Results are the source of up-to-date information concerning the consumption of sugar and sweeteners. Consumers to whom nutrition campaigns on the necessity to limit the content of sugar in the diet are worth addressing were identified. A hypothesis, that consumers are currently more aware of the negative influence of increased sugar consumption on their health and they aim at limiting the content of added sugar in their diet, was confirmed.