Weight Loss
Sustainable weight loss is mostly habits, not hacks. We cut through the noise on GLP-1s, diets, and exercise approaches with evidence-backed analysis and personalized tools.
Early research suggests cinnamon may modestly slow gastric emptying and blunt blood sugar spikes, which could indirectly reduce hunger — but direct evidence for appetite control in humans is limited and inconsistent. Mo…
Berberine has shown modest effects on body weight in several small clinical trials, but direct evidence specifically for appetite suppression in humans is thin and inconsistent. Its most studied mechanism is AMPK activa…
Iron deficiency is linked to increased appetite and cravings in some people, but correcting a deficiency is very different from taking iron supplements to suppress appetite in people who are replete. The evidence that i…
Zinc deficiency is linked to reduced appetite — correcting a deficiency can restore normal hunger signaling, but this is different from zinc suppressing appetite in well-nourished people. Evidence in healthy, zinc-suffi…
No direct evidence: No human clinical trials have tested vitamin K2 specifically for appetite control or hunger suppression. Indirect links exist but are weak: K2's roles in insulin sensitivity and osteocalcin signaling…
Vitamin D3 deficiency is common in people with obesity, but low vitamin D is more likely a consequence of excess body fat than a cause of increased appetite. A small number of studies suggest vitamin D3 may modestly inf…
Evidence is modest and mixed: A handful of small human trials suggest fish oil may modestly reduce hunger or alter appetite-related hormones, but the effect sizes are inconsistent and often disappear in larger studies. …
Caffeine produces a modest, short-term reduction in appetite and calorie intake — effects that appear to fade with regular use. The mechanism is reasonably well understood (adenosine blockade, sympathetic nervous system…
No direct evidence: No human clinical trials have specifically tested beta-alanine for appetite control or weight loss. Primary use: Beta-alanine is a well-studied ergogenic aid for muscular endurance — not an appetite …
Modest, real signal: Whey protein does appear to reduce short-term hunger and calorie intake in controlled studies, but the effect is moderate and not guaranteed to translate into meaningful long-term weight loss for ev…
No direct evidence: Creatine monohydrate has not been meaningfully studied as an appetite suppressant — it is not a weight-loss or hunger-control supplement. Indirect effects are possible but modest: By supporting lean …
Thin evidence: No high-quality human trials have tested l-theanine specifically for appetite control or weight loss as a primary outcome. Indirect pathways exist: L-theanine may reduce stress-driven eating by blunting c…
No direct evidence: No clinical trials have tested valerian specifically for appetite control or weight loss in humans. Indirect logic exists but is unproven: Valerian is studied mainly for sleep and anxiety; poor sleep…
Ashwagandha has modest evidence for reducing stress-related eating and food cravings, but direct appetite-suppression evidence is thin. The strongest signal is through cortisol reduction — high cortisol drives hunger, p…
Limited direct evidence: No high-quality human trials have tested melatonin specifically as an appetite-control aid; most relevant data comes from animal studies or secondary observations in metabolic research. Indirect…
Weak overall evidence: There is no strong, direct clinical evidence that magnesium supplements meaningfully suppress appetite or reduce food intake in otherwise healthy adults. Indirect pathways exist: Magnesium plays a…
Weak human evidence: There are no well-powered clinical trials showing that GABA supplementation meaningfully reduces body fat in otherwise healthy adults. Indirect mechanisms exist but are unproven: GABA influences gro…
Very limited direct evidence: No well-designed human clinical trials have tested glycine as a fat-loss supplement specifically, and the current evidence does not support using it for weight loss. Some indirect metabolic…
Weak overall evidence: CoQ10 has not been shown to cause meaningful fat loss in otherwise healthy adults, and no large, well-designed clinical trials support using it primarily for weight management. Mitochondrial role …
Animal studies show rhodiola rosea may influence fat metabolism, but rigorous human trials specifically on fat loss are largely absent. One small human study found rhodiola extract improved exercise performance and fat …
Green tea extract (GTE) shows a modest, real but small effect on fat loss in clinical trials — we're talking roughly 1–3 lbs over 12 weeks, not dramatic transformation. The active drivers appear to be catechins (especia…
Ginger shows modest, inconsistent effects on body weight and fat mass in human trials — promising but not strong enough to call it a reliable fat-loss aid on its own. Most studies use supplemental ginger powder (1–3 g/d…
Curcumin shows modest, inconsistent effects on body weight and fat mass in human trials — the overall evidence is weak to moderate at best. Most positive studies used high-dose or bioavailability-enhanced formulations (…
Mixed, mostly weak evidence: Small human trials suggest cinnamon may modestly improve insulin sensitivity and blood sugar control, but direct evidence for meaningful fat loss in healthy adults is lacking. Not a fat-burn…
Alpha-lipoic acid (ALA) shows modest, inconsistent effects on body weight in human trials — average losses of 1–2 kg over placebo in the best studies, which may not be clinically meaningful for most people. Most support…
Berberine shows modest fat-loss effects in clinical trials, but most studies are small, short, and conducted in people with metabolic disease — not healthy adults trying to lose a few pounds. The primary mechanism appea…
Some probiotic strains — particularly Lactobacillus gasseri and certain multispecies blends — show modest reductions in body weight and belly fat in clinical trials, but the effects are small and not consistent across s…
Inulin is a prebiotic fiber with modest, not dramatic, effects on body weight — most human trials show small reductions in body weight or fat mass, typically under 2 kg over 8–12 weeks. Its main mechanisms are appetite …
Modest indirect support: Psyllium husk can reduce appetite and lower post-meal blood glucose spikes, which may make calorie control easier — but it has not been shown to cause fat loss directly. Weight effects are small…
Iron deficiency can impair energy metabolism and physical performance , which may indirectly make fat loss harder — but iron is not a fat-loss supplement. Correcting a true deficiency may restore exercise capacity and s…