Study protocols

What each study gave its participants a day, by supplement. These are the doses the studies gave. They are not a recommendation.

Iron423 study groups in 231 studies
Folic Acid374 study groups in 199 studies
Vitamin D366 study groups in 202 studies
Calcium232 study groups in 137 studies
Omega-3 Fatty Acids186 study groups in 124 studies
Zinc168 study groups in 103 studies
Probiotics141 study groups in 110 studies
Vitamin E119 study groups in 72 studies
Vitamin A95 study groups in 60 studies
Vitamin B1281 study groups in 58 studies
Vitamin C74 study groups in 52 studies
Docosahexaenoic Acid73 study groups in 54 studies
Beta-Carotene71 study groups in 44 studies
Fiber71 study groups in 39 studies
Selenium71 study groups in 48 studies
Fish Oil50 study groups in 34 studies
Vitamin B645 study groups in 36 studies
Whey Protein45 study groups in 30 studies
Leucine40 study groups in 16 studies
Niacin40 study groups in 21 studies
Phytosterols35 study groups in 20 studies
Curcumin30 study groups in 17 studies
Caffeine29 study groups in 12 studies
Creatine29 study groups in 21 studies
Riboflavin29 study groups in 14 studies
Nitrate27 study groups in 18 studies
Vitamin K26 study groups in 14 studies
Activated Charcoal23 study groups in 11 studies
Iodine23 study groups in 17 studies
Melatonin22 study groups in 19 studies
Anthocyanins21 study groups in 11 studies
Choline21 study groups in 12 studies
Prebiotics21 study groups in 15 studies
St. John's Wort21 study groups in 10 studies
Artemisinin20 study groups in 13 studies
Lutein20 study groups in 11 studies
Potassium20 study groups in 15 studies
Arginine19 study groups in 15 studies
Electrolytes19 study groups in 14 studies
Collagen17 study groups in 15 studies
Essential Amino Acids17 study groups in 15 studies
Vitamin B917 study groups in 14 studies
N-Acetyl Cysteine16 study groups in 12 studies
Magnesium15 study groups in 12 studies
Casein14 study groups in 10 studies
Lactoferrin14 study groups in 10 studies
Phenylalanine14 study groups in 3 studies
Alpha-Linolenic Acid13 study groups in 7 studies
Beta-Glucans13 study groups in 4 studies
Inositol13 study groups in 11 studies
Sodium Bicarbonate13 study groups in 9 studies
Berberine12 study groups in 10 studies
Branched-Chain Amino Acids12 study groups in 5 studies
Cranberry12 study groups in 5 studies
Inulin12 study groups in 11 studies
L-Carnitine12 study groups in 10 studies
Psyllium12 study groups in 11 studies
Alpha-Lipoic Acid11 study groups in 8 studies
Chondroitin11 study groups in 8 studies
Coenzyme Q1011 study groups in 11 studies
Glucosamine11 study groups in 8 studies
Green Tea Extract11 study groups in 7 studies
Lysine11 study groups in 3 studies
Thiamine11 study groups in 7 studies
Zeaxanthin11 study groups in 6 studies
Cocoa Extract10 study groups in 5 studies
Ginkgo Biloba9 study groups in 9 studies
Lavender9 study groups in 5 studies
Lycopene9 study groups in 5 studies
Multivitamin9 study groups in 6 studies
Quercetin9 study groups in 5 studies
Boswellia8 study groups in 6 studies
Copper8 study groups in 5 studies
Policosanol8 study groups in 6 studies
Beta-Alanine7 study groups in 5 studies
Betaine7 study groups in 7 studies
Caprylic Acid7 study groups in 2 studies
Garlic7 study groups in 4 studies
Glutamine7 study groups in 6 studies
L-Methionine7 study groups in 4 studies
Nicotinamide Riboside7 study groups in 4 studies
Ornithine7 study groups in 2 studies
Ribose7 study groups in 2 studies
Acetyl-L-Carnitine6 study groups in 5 studies
Arachidonic Acid6 study groups in 6 studies
Avocado6 study groups in 4 studies
HMB6 study groups in 5 studies
Palmitoylethanolamide6 study groups in 4 studies
Phosphatidylcholine6 study groups in 6 studies
Ubiquinol6 study groups in 4 studies
Colostrum5 study groups in 4 studies
Glycerol5 study groups in 3 studies
Pea Protein5 study groups in 4 studies
Saw Palmetto5 study groups in 5 studies
Ashwagandha4 study groups in 2 studies
Beet Root4 study groups in 3 studies
Cinnamon4 study groups in 2 studies
Ginger4 study groups in 2 studies
Glycine4 study groups in 3 studies
Idebenone4 study groups in 2 studies
L-Serine4 study groups in 3 studies
Panax Ginseng4 study groups in 3 studies
Silica4 study groups in 2 studies
Spirulina4 study groups in 2 studies
Amla3 study groups in 2 studies
Astaxanthin3 study groups in 2 studies
Biotin3 study groups in 3 studies
Butterbur3 study groups in 2 studies
Citrulline3 study groups in 3 studies
Epigallocatechin Gallate3 study groups in 3 studies
Ginseng3 study groups in 3 studies
Glutathione3 study groups in 3 studies
Myrrh3 study groups in 2 studies
Pomegranate3 study groups in 3 studies
Soy Isoflavones3 study groups in 3 studies
Theobromine3 study groups in 1 study
Uridine3 study groups in 2 studies
Urolithin A3 study groups in 2 studies
White Kidney Bean3 study groups in 2 studies
White Mulberry3 study groups in 1 study
Wormwood3 study groups in 2 studies
Alanine2 study groups in 2 studies
Artemisia Annua2 study groups in 1 study
Bergamot2 study groups in 1 study
Beta-Sitosterol2 study groups in 2 studies
Black Currant2 study groups in 1 study
Butyrate2 study groups in 2 studies
Carnitine2 study groups in 2 studies
Cod Liver Oil2 study groups in 2 studies
D-Serine2 study groups in 2 studies
Digestive Enzymes2 study groups in 1 study
Erythritol2 study groups in 2 studies
Fumaric Acid2 study groups in 1 study
Grape Seed Extract2 study groups in 2 studies
Hesperidin2 study groups in 1 study
Hops2 study groups in 1 study
Horsetail2 study groups in 1 study
Isoleucine2 study groups in 2 studies
Krill Oil2 study groups in 2 studies
Pine Bark Extract2 study groups in 2 studies
Resveratrol2 study groups in 2 studies
Rhodiola Rosea2 study groups in 1 study
S-Adenosyl Methionine2 study groups in 2 studies
Sarcosine2 study groups in 2 studies
Senna2 study groups in 2 studies
Shilajit2 study groups in 1 study
Teacrine2 study groups in 1 study
Turmeric2 study groups in 2 studies
Type-II Collagen2 study groups in 2 studies
Yerba Mate2 study groups in 2 studies
ATP1 study group in 1 study
Allulose1 study group in 1 study
Alpha-Ketoglutarate1 study group in 1 study
Apple Cider Vinegar1 study group in 1 study
Artichoke Extract1 study group in 1 study
Asafoetida1 study group in 1 study
Astragalus1 study group in 1 study
Betaine HCL1 study group in 1 study
Bilberry1 study group in 1 study
Black Cohosh1 study group in 1 study
Black Seed Oil1 study group in 1 study
Carnosine1 study group in 1 study
Celery Seed1 study group in 1 study
Chlorophyll1 study group in 1 study
Chromium1 study group in 1 study
Diosmin1 study group in 1 study
Echinacea1 study group in 1 study
Evening Primrose Oil1 study group in 1 study
Exogenous Ketones1 study group in 1 study
Flaxseed Oil1 study group in 1 study
Glucomannan1 study group in 1 study
Grains of Paradise1 study group in 1 study
Huperzine A1 study group in 1 study
Hyaluronic Acid1 study group in 1 study
Jiaogulan1 study group in 1 study
Kaempferol1 study group in 1 study
L-Histidine1 study group in 1 study
L-Tyrosine1 study group in 1 study
Licorice1 study group in 1 study
Lupin1 study group in 1 study
MCT Oil1 study group in 1 study
Magnolia Bark1 study group in 1 study
Milk Thistle1 study group in 1 study
Moringa1 study group in 1 study
Motherwort1 study group in 1 study
Naringenin1 study group in 1 study
Peppermint Oil1 study group in 1 study
Phosphatidylserine1 study group in 1 study
Propolis1 study group in 1 study
Taurine1 study group in 1 study
Theanine1 study group in 1 study
Tryptophan1 study group in 1 study
Valerian1 study group in 1 study