Best Supplements for Weight Loss (2026)
Evidence-based supplements that support healthy weight management through metabolic optimization, appetite regulation, and fat oxidation.
Ranked by expert consensus across 111+ longevity protocols. Last updated March 2026.
Top 9 Supplements for Weight Loss
Omega-3 Fish Oil (High EPA)
High-potency omega-3 fish oil supplement with elevated EPA content. Supports cardiovascular health, reduces systemic inflammation, and promotes healthy brain function and mood regulation.
Recommended by 111 experts
Omega-3 Fish Oil (High EPA)
supplements
Green Tea (Matcha)
High-quality matcha green tea powder rich in EGCG catechins and L-theanine. Provides calm, sustained energy while delivering powerful antioxidant and anti-inflammatory benefits. Regular green tea consumption is associated with reduced cardiovascular disease risk and improved metabolic health in population studies.
Recommended by 90 experts
Green Tea (Matcha)
foods
Electrolyte Mix
Balanced electrolyte mix containing sodium, potassium, and magnesium to support hydration and cellular function. Essential for maintaining energy levels, muscle function, and cognitive performance, especially during fasting or exercise. Sugar-free formulas are preferred in longevity protocols.
Recommended by 36 experts
Electrolyte Mix
supplements
Whey Protein Isolate
Whey protein isolate is a fast-absorbing, complete protein derived from milk that delivers all essential amino acids with minimal fat and lactose. It is one of the most well-studied supplements for supporting muscle protein synthesis, recovery from exercise, and preservation of lean mass during caloric restriction.
Recommended by 26 experts
Whey Protein Isolate
supplements
Ceylon Cinnamon
Ceylon cinnamon, known as 'true cinnamon,' is a spice with research-supported blood sugar lowering properties. It may improve insulin sensitivity and help reduce fasting glucose levels. Dr. Jason Fung recommends cinnamon as a natural way to manage hunger during fasts — it adds flavor to beverages without stimulating insulin and may have protective metabolic effects.
Ceylon Cinnamon
foods
Berberine
Berberine is a bioactive compound extracted from several plants including barberry and goldenseal. Research shows it can significantly improve blood sugar regulation, lipid profiles, and gut health. Often compared to metformin for its glucose-lowering effects, berberine activates AMPK, a key enzyme in metabolic regulation.
Berberine
supplements
Apple Cider Vinegar
Raw, unfiltered apple cider vinegar with the 'mother' culture. Research suggests it may help reduce blood sugar spikes after meals by slowing gastric emptying. Dr. Jason Fung recommends it as a fasting aid — a tablespoon or two in water can help suppress hunger and stimulate digestion when breaking a fast.
Apple Cider Vinegar
foods
MCT Oil
Medium-chain triglyceride (MCT) oil is a concentrated fat supplement derived from coconut or palm kernel oil. MCTs are rapidly absorbed and converted to ketones in the liver, providing quick energy for the brain and body. Popular among fasting and keto practitioners for sustaining energy without spiking insulin.
Recommended by 5 experts
MCT Oil
supplements
Inositol (Myo-Inositol)
Inositol is a carbocyclic sugar involved in insulin signaling, neurotransmitter function, and lipid metabolism. Myo-inositol supplementation has shown benefits for insulin sensitivity, hormonal balance, anxiety reduction, and sleep quality. It is particularly well-studied for metabolic syndrome and PCOS support.
Recommended by 3 experts
Inositol (Myo-Inositol)
supplements
Links may earn us a commission at no extra cost to you.
Frequently Asked Questions
What supplements help with weight loss?
Berberine is one of the most evidence-backed supplements for metabolic health, shown to improve blood sugar regulation and lipid profiles. Green tea extract (EGCG) and MCT oil also have research supporting modest fat oxidation benefits.
Does apple cider vinegar help with weight loss?
Research suggests apple cider vinegar may help reduce blood sugar spikes after meals by slowing gastric emptying. Several experts recommend it as a fasting aid, though its direct weight loss effects are modest compared to dietary changes.
Are weight loss supplements safe?
The supplements listed here are generally recognized as safe when used at recommended doses. Always consult your healthcare provider before starting new supplements, especially if you take medications. No supplement replaces a balanced diet and exercise.
Explore Other Goals
Get Weight Loss Supplement Picks in Your Inbox
Expert-vetted supplement recommendations, protocol updates, and the latest research — weekly.