Foundational Weight Support

Soluble fiber expands in the stomach, slows gastric emptying, blunts postprandial glucose spikes, and increases satiety. Multiple meta-analyses link soluble fiber intake with reduced body weight, waist circumference, and HbA1c. Start at half-dose for the first week.^{[1, 2, 3]}

Berberine activates AMPK, improves insulin sensitivity, and modulates the gut microbiome. Meta-analyses link supplementation to modest reductions in body weight, waist circumference, and HbA1c in adults with metabolic syndrome. Effect size is real but modest — roughly 5 lbs over 12 weeks on top of lifestyle. Single large doses cause GI distress.^{[4, 5, 6]}

Green tea catechins (primarily EGCG) have small thermogenic and fat-oxidation effects. Meta-analyses find modest reductions in body weight (~1-2 lbs over 12 weeks) at standardized EGCG doses. Effect is amplified by caffeine, but pure caffeine alone is not the active component. Some hepatotoxicity reports at high doses on empty stomach — take with food.^{[7, 8, 9]}

Magnesium is involved in insulin signaling and glucose handling. Most adults under-consume magnesium relative to RDA. Supplementation in insulin-resistant adults improves insulin sensitivity modestly. Also supports sleep, which is upstream of weight regulation.^{[10, 11]}

Chromium is involved in insulin receptor function. Trial evidence in weight loss is genuinely mixed — some meta-analyses show modest benefit (1-2 lbs), others show no effect. The picolinate form has the best absorption. Treat as the most speculative item.^{[12, 13]}