Effect of the Anti-Inflammatory Diet in People with Diabetes and Pre-Diabetes: A Randomized Controlled Feeding Study.

INTRODUCTION: Inflammation underlies a variety of chronic medical conditions, including diabetes. The anti-inflammatory diet, one that excludes foods that may stimulate inflammation and includes foods that reduce inflammation, may improve inflammatory biomarkers in people with diabetes and pre-diabetes. STUDY DESIGN: Thirty participants with diabetes or pre-diabetes were randomized (2:1) in a controlled feeding study that compared the anti-inflammatory diet (n=20) to a control diet (n=10) based on the American Diabetes Association recommendations. Diets were matched for protein, carbohydrate, fat, and fiber content as closely as possible. Participants were fed an isocaloric diet for 2 weeks, followed by continued ad libitum feeding in their dietary group assignment for an additional 4 weeks. All meals were prepared by the study team. OUTCOMES: Primary outcomes included inflammatory markers, including cytokines and hsCRP. Secondary outcomes included body weight and biomarkers for cardiovascular disease and diabetes. RESULTS: Both diets resulted in trends in reduced markers of inflammation, especially with weight loss. In addition, glucose, lipids, and triglycerides all trended downward, also non-significantly and equally in both groups. CONCLUSION: Dietary change can improve inflammation as well as other cardiometabolic risk factors. In this study, the anti-inflammatory diet did not affect markers of inflammation more than the control diet.

Diets lower in folic acid and carotenoids are associated with the coronary disease epidemic in Central and Eastern Europe.

OBJECTIVE: To test our hypothesis that lower intakes of previously identified cardioprotective nutrients would be associated with the coronary epidemic in Central and Eastern Europe. DESIGN: We conducted a survey of coronary mortality in 16 countries and diet in 19 countries. SUBJECTS/SETTING: Countries were placed in four groups with different cultural patterns (Central and Eastern Europe, including Russia; Western Europe and the United States; Mediterranean; and Asian). MAIN OUTCOME MEASURES: Independent predictors of coronary mortality. STATISTICAL ANALYSES PERFORMED: Means and standard deviations were calculated, and analysis of variance with Bonferroni post hoc tests and backward elimination regression analysis was conducted. RESULTS: Coronary mortality was highest in Central and Eastern Europe followed by Western Europe and the United States, the Mediterranean countries, and Asia (Japan). The model with folate, fiber, and n-6/n-3 fatty acids explained the majority of variation in coronary mortality (men 86%, women 90%). Most of the variation was explained by folate (men 61%, women 62%). The picture is complicated by the fact that folate, lutein/zeaxanthin, and beta-carotene were highly intercorrelated ( r =0.87 to 0.99). CONCLUSIONS: A diet low in foods containing folate and carotenoids (beta-carotene and lutein/zeaxanthin) may be a major contributing factor to increased coronary risk observed in the countries of Central and Eastern Europe.