Diet & Nutrition

Discover what 378 trials involving 113,000+ participants reveal about prediabetes treatment, lifestyle changes, metformin, and incretin therapies.

New trial data suggest dietary fiber supplementation may lower systolic blood pressure in adults with type 2 diabetes and hypertension.

Could the carbohydrates eaten at breakfast affect the blood sugar response to lunch? Research on resistant starch and the second-meal effect suggests they might. Resistant starch escapes much of the digestion that normally occurs in the small intestine. As a result, less of it is immediately converted to glucose, while …

Time-restricted eating has become a popular approach to weight management, but what happens when insulin-dependent diabetes enters the picture? Until recently, evidence on time-restricted eating in people with type 1 diabetes was notably limited. A new randomized controlled trial published in Diabetes Care offers some of the first direct evidence. …

A diabetes app can track meals, count steps, log glucose, and deliver reminders. However, can an app actually help someone turn all that information into lasting daily habits? A recent randomized controlled trial suggests that digital diabetes coaching, with technology supported by ongoing human guidance, may help bridge that gap. …

Does eating more fat automatically mean that more harmful fatty acids will circulate in the blood? A new randomized trial suggests the answer may be more complicated. Researchers studying a low-carb diet for type 2 diabetes found that six months of carbohydrate restriction changed circulating fatty acids in potentially favorable …

Medical nutrition therapy for diabetes is often discussed in terms of A1C, glucose levels, and weight. However, could personalized nutrition also influence inflammation and other aspects of metabolic health? A recent randomized controlled trial offers an intriguing reason to ask that question. Researchers found that individualized medical nutrition therapy with …

Efforts to prevent or delay type 1 diabetes have traditionally focused on the autoimmune attack that destroys insulin-producing beta cells. However, emerging research suggests metabolic stress may also influence how quickly vulnerable people progress to clinical disease. A 2026 TrialNet analysis found that autoantibody-positive people with overweight or obesity who …

For many people living with binge eating disorder and type 2 diabetes, managing blood sugar isn’t just about counting carbohydrates or losing weight. Emotional eating, loss of control around food, and feelings of guilt can quietly interfere with diabetes care, even when someone is taking the right medications. Because of …

For decades, A1C has served as the gold standard for assessing long-term glucose control in people with diabetes. However, it tells only part of the story. Researchers are now exploring whether metabolic flexibility could become an important biomarker in diabetes, offering a deeper understanding of metabolic health than A1C alone. …