Intermittent fasting has strong mechanistic support for improving insulin sensitivity and metabolic markers, but 2024–2025 research has raised important questions about muscle loss risk and cardiovascular safety. This article reviews the current evidence.
Ultra-processed food consumption is now linked to obesity, metabolic syndrome, type 2 diabetes, cardiovascular disease, and all-cause mortality in multiple large prospective cohort studies. This article summarizes the evidence and explains the mechanisms.
Polyphenols — plant-derived compounds including flavonoids, resveratrol, quercetin, and curcumin — have demonstrated anti-inflammatory, insulin-sensitizing, and gut microbiome-supporting effects in clinical research. This article summarizes the evidence and food sources.
Dietary fiber is fermented by gut bacteria into short-chain fatty acids (SCFAs) — particularly butyrate, propionate, and acetate — that regulate metabolism, appetite, insulin sensitivity, and inflammation. This article explains the fiber-microbiome-SCFA axis and why it matters.
Vitamin D deficiency is twice as prevalent in obese individuals as in lean individuals — and emerging evidence suggests that low vitamin D status independently contributes to insulin resistance, visceral fat accumulation, and metabolic syndrome risk.
Zinc deficiency is significantly more common in people with obesity — partly because obesity drives zinc loss, and partly because zinc deficiency worsens the metabolic dysfunction that promotes obesity. This bidirectional relationship makes zinc status an important consideration in metabolic health.
Magnesium participates in over 300 enzymatic reactions, including every ATP-producing reaction and insulin receptor signaling. Deficiency — affecting an estimated 60–70% of modern adults — impairs glucose metabolism, promotes insulin resistance, and raises cardiovascular risk.
Omega-3 fatty acids (EPA and DHA) have established metabolic benefits — particularly for triglycerides, inflammation, and insulin sensitivity — but the evidence for weight loss and cardiovascular mortality has been more mixed than popular claims suggest. This article summarizes what the research actually shows.
Fructose is metabolized almost exclusively in the liver, where it directly stimulates fat synthesis (de novo lipogenesis) independently of total caloric intake. This article explains why fructose — particularly from beverages — is the most potent dietary driver of fatty liver disease.
