Autoimmune diseases and metabolic syndrome share common inflammatory mechanisms — and dietary interventions that reduce gut dysbiosis and systemic inflammation show benefits across both categories. This article explains the overlap and the evidence for dietary support.

Endocrine-disrupting chemicals including phthalates and bisphenol A (BPA) are present in plastics, food packaging, personal care products, and receipts — and they measurably interfere with fat cell development, thyroid function, and insulin signaling.

PM2.5 air pollution exposure independently causes insulin resistance, cardiovascular disease, and metabolic syndrome — through oxidative stress and inflammation mechanisms that are distinct from dietary drivers. This article reviews the evidence and what can be done.

AMPK and mTOR are opposing molecular switches that regulate the body's fundamental choice between energy expenditure and storage. Understanding how dietary choices activate one and suppress the other explains many puzzling aspects of metabolism and fat loss.

Long COVID — persistent symptoms after SARS-CoV-2 infection — includes significant metabolic components: new-onset insulin resistance, fatigue from mitochondrial dysfunction, dysbiosis, and viral-triggered autoimmunity. This article explains the metabolic mechanisms and dietary support approaches.

Brown adipose tissue (BAT) burns fat directly to generate heat — unlike white fat, which stores energy. BAT activity declines with obesity and aging but can be reactivated through specific stimuli. This article explains the biology and what dietary and lifestyle factors affect BAT activity.

Sarcopenic obesity — the combination of low muscle mass and excess fat — is the most metabolically dangerous body composition pattern. This article explains why the combination carries risks far greater than either condition alone and what dietary approach addresses both simultaneously.

GLP-1 (glucagon-like peptide 1) is a gut hormone that suppresses appetite, stimulates insulin secretion, and slows gastric emptying. Specific foods and dietary patterns stimulate GLP-1 release naturally — potentially providing some of the same benefits as GLP-1 receptor agonist drugs without the medication.

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.