Grade: A (Strong Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Ephedra	Weight loss
Grade: B (Good Scientific Evidence)
Therapy	Specific therapeutic Use(s)
5-HTP	Obesity
Chitosan	Obesity/weight loss
DHEA	Obesity
Grade: C (Unclear or Conflicting Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Amylase inhibitors	Obesity/weight loss
Betaine anhydrous	Weight loss
Bitter orange	Weight loss
Black tea	Weight loss
Calcium	Weight loss
Damiana	Weight loss (obese patients)
Evening primrose oil	Obesity/weight loss
Flaxseed and flaxseed oil	Obesity
Garcinia	Weight loss
Ginger	Weight loss
Green tea	Weight loss (maintenance)
Guarana	Weight loss
Guggul	Obesity
Gymnema	Weight loss
L-Carnitine	Obesity
Licorice	Reducing body fat mass
Lutein	Obesity
Macrobiotic diet	Obesity
Psyllium	Obesity
Rhubarb	Obesity (simple)
Seaweed, kelp, bladderwrack	Weight loss
Soy	Obesity/weight reduction
Spirulina	Weight loss
Taurine	Obesity
Vitamin A	Weight loss
Vitamin D	Weight gain (postmenopausal)
Grade: D (Fair Negative Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Beta-glucan	Weight loss
Grade: F (Strong Negative Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Chromium	Obesity/weight loss
Traditional or Theoretical Uses which Lack Sufficient Evidence
Therapy	Specific therapeutic Use(s)
Alizarin	Weight gain
Alpha-lipoic acid	Obesity
Apple cider vinegar	Obesity
Arginine	Obesity
Astragalus	Weight loss
Babassu	Obesity
Barley	Appetite suppressant
Beta-carotene	Weight loss (HIV
Betel nut	Appetite suppressant
Black currant	Weight loss
Black pepper	Obesity
Black tea	Obesity
Bovine colostrum	Fat burning
Bromelain	Appetite suppressant
Carob	Obesity
Chia	Obesity
Chicory	Obesity
Chitosan	Appetite suppressant
Chlorophyll	Obesity
Cinnamon	Weight gain
Codonopsis	Obesity
Coenzyme Q10	Obesity
Coleus	Obesity
Copper	Weight gain
Dandelion	Obesity
Desert parsley	Weight gain
Devil's club	Weight loss
Ephedra	Appetite suppressant
Gamma oryzanol	Body fat reducer
Garcinia	Appetite suppressant
Garlic	Obesity
Ginkgo	Body fat reducer (cellulite)
Goldenseal	Obesity
Grape seed	Body fat reducer (cellulite)
Guarana	Appetite suppressant
Guggul	Obesity
Hoodia	Appetite suppressant
Hops	Obesity
Iodine	Weight loss
Jojoba	Appetite suppressant
Kava	Weight reduction
Khat	Appetite suppressant
Lemongrass	Body fat reducer (cellulite)
Licorice	Obesity
MSM	Obesity
Noni	Weight loss
Nopal	Obesity
Omega-3 fatty acids, fish oil, alpha-linolenic acid	Obesity
Onion	Obesity
Pantothenic acid	Obesity
Perilla	Obesity
Pycnogenol	Fat burning
Raspberry	Obesity
Red clover	Appetite suppressant
Red yeast rice	Obesity
Rhodiola	Obesity
Safflower	Appetite suppressant
Seaweed, kelp, bladderwrack	Obesity
Thyme	Obesity
Thymus extract	Weight loss (wasting or catabolic)
Usnea	Weight loss
Vitamin O	Obesity
Wheatgrass	Weight loss aid
Yohimbe bark extract	Obesity