Scores 35/35 for dosage transparency, 25/25 for a clean formula, 21/25 for label completeness. 5 ingredients disclosed with amounts.
capsule · 30 servings · $1.36/servingBuy on iHerb$40.76
Ranking
10 Best Weight Management Supplements
Weight-management supplements carry the most risk of any category in this database: the FDA has found hidden prescription drugs in many weight-loss products, and several popular ingredients have case reports of liver injury. A complete label from an established brand is the minimum to look for.
We ranked CLA, glucomannan, garcinia, green coffee and other weight-management products sold on iHerb by label quality.
Our top picks
Scores 35/35 for dosage transparency, 25/25 for a clean formula, 21/25 for label completeness. 5 ingredients disclosed with amounts.
capsule · 60 servings · $0.63/servingBuy on iHerb$37.76
Scores 35/35 for dosage transparency, 25/25 for a clean formula, 21/25 for label completeness. 5 ingredients disclosed with amounts.
capsule · 60 servings · $0.63/servingBuy on iHerb$37.76
Top 10 ranked
#ProductScoreFormServingsPrice
How we ranked them
Every product is scored 0–100 from its label data in the NIH Dietary Supplement Label Database: dosage transparency (35 points - are amounts stated per ingredient, or hidden in a proprietary blend?), label completeness (25), formulation cleanliness (25 - fillers, dyes, titanium dioxide and other non-active ingredients) and ingredient profile (15). The Top 10 admits only products scoring 60 or higher; among those, products with a verified retail listing are shown first so the list is one you can act on. No brand can pay to be included or moved up.
Forms and dosage
- Fiber (glucomannan)
- Studied at 1 g before meals, three times a day, with water.
- CLA
- Conjugated linoleic acid, usually 3–4 g per day in studies.
- Thermogenic blends
- Caffeine and plant extracts; total caffeine should be stated.
- Garcinia, green tea extract
- Both have reports of liver injury in the NIH LiverTox database.
How much to take
Doses from studies: glucomannan 3 g per day split before meals, CLA 3–4 g per day. Caffeine from all sources should stay at or below 400 mg per day for healthy adults.
Who it's for
Adults who understand that the ranking judges label quality, not weight-loss results.
What to watch out for
Products with dramatic weight-loss claims, undisclosed stimulants, green tea extract taken on an empty stomach, and anything not from an established brand.
All Weight Management products (4652)
1
Nature's PlusSugar Armor Sugar Blocker Weight Loss Aid
892EmeraldWeight Loss Health
893Emerald LabsWeight Loss Health
894Emerald LaboratoriesWeight Loss Health
895youtheorySlimming Citrus Fruit
856Flat TummyApple Cider Vinegar Gummies
857VitamaticApple Cider Vinegar Gummies 1000 mg Natural Apple Flavor
858AnimalAnimal Cuts
839HUMCounter Cravings
8310LegionPhoenix Fat Burner
8311DaVinci Benefits LineAdipo-Leptin Benefits
8312CodeageGLP-Harmony Companion+
8313The Genius BrandGenius Burn
8214Nobi NutritionPremium Night Time Fat Burner
8215Evlution NutritionNightLean
8216NOWDiet Support
8117Crystal StarThin After 40
8118Crystal StarFat & Sugar Detox
8119Swanson Premium BrandFull Spectrum Coleus Forskohlii 400 mg
8020HydroxycutHydroxycut Black
80Frequently Asked Questions
Do weight-loss supplements work?
Our score measures label quality, not results. Evidence for most ingredients is weak, and the safety record of the category is the worst in the database.
Why is green tea extract a concern?
Concentrated green tea extracts have been linked to rare liver injury, documented in the NIH LiverTox database.
How are weight management supplements ranked?
Products are ranked by SupplementScore, which evaluates label quality across four categories: dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts). The score is based on data from the NIH Dietary Supplement Label Database, not marketing claims.
Does a higher score mean the supplement is more effective?
No. The SupplementScore measures label quality, how transparent, clean, and well-documented a product is. It does not measure clinical efficacy, bioavailability, or third-party testing. A higher score means better label practices, not guaranteed results.
How many weight management supplements were analyzed?
We analyzed 4,652 weight management products from the NIH DSLD database, which contains label data for over 116,000 dietary supplements sold in the United States.
This article is for information only and is not medical advice. Talk to a clinician before starting a supplement, especially if you are pregnant, take medication or have a health condition.