Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage, and drug interactions.
A
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Acai
National Center for Complementary and Integrative Health
- Activated Charcoal Natural Medicines Comprehensive Database
- Alfalfa Natural Medicines Comprehensive Database
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Aloe Vera
National Center for Complementary and Integrative Health
- Alpha-Lipoic Acid Natural Medicines Comprehensive Database
- American Ginseng Natural Medicines Comprehensive Database
- Apple Cider Vinegar Natural Medicines Comprehensive Database
- Arnica Natural Medicines Comprehensive Database
- Ashwagandha Natural Medicines Comprehensive Database
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Asian Ginseng
National Center for Complementary and Integrative Health
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Astragalus
National Center for Complementary and Integrative Health
B
- Bacillus Coagulans Natural Medicines Comprehensive Database
- Bee Pollen Natural Medicines Comprehensive Database
- Belladonna Natural Medicines Comprehensive Database
- Berberine Natural Medicines Comprehensive Database
- Beta-Carotene Natural Medicines Comprehensive Database
- Bifidobacterium animalis subsp. lactis Natural Medicines Comprehensive Database
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Bilberry
National Center for Complementary and Integrative Health
- Biotin Natural Medicines Comprehensive Database
- Bitter Melon Natural Medicines Comprehensive Database
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Bitter Orange
National Center for Complementary and Integrative Health
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Black Cohosh
National Center for Complementary and Integrative Health
- Black Psyllium Natural Medicines Comprehensive Database
- Black Seed Natural Medicines Comprehensive Database
- Black Tea Natural Medicines Comprehensive Database
- Blessed Thistle Natural Medicines Comprehensive Database
- Blond Psyllium Natural Medicines Comprehensive Database
- Blueberry Natural Medicines Comprehensive Database
- Blue-Green Algae Natural Medicines Comprehensive Database
- Boron Natural Medicines Comprehensive Database
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Butterbur
National Center for Complementary and Integrative Health
C
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Calcium
National Institutes of Health, Office of Dietary Supplements
- Calendula Natural Medicines Comprehensive Database
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Cancell/Cantron/Protocel
National Cancer Institute
- Cannabidiol (CBD) Natural Medicines Comprehensive Database
- Capsicum Natural Medicines Comprehensive Database
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Cartilage (Bovine and Shark)
National Cancer Institute
- Cascara Sagrada Natural Medicines Comprehensive Database
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Cat's Claw
National Center for Complementary and Integrative Health
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Chamomile
National Center for Complementary and Integrative Health
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Chasteberry
National Center for Complementary and Integrative Health
- Chondroitin Sulfate Natural Medicines Comprehensive Database
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Chromium
National Institutes of Health, Office of Dietary Supplements
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Cinnamon
National Center for Complementary and Integrative Health
- Clove Natural Medicines Comprehensive Database
- Coconut Oil Natural Medicines Comprehensive Database
- Coconut Water Natural Medicines Comprehensive Database
- Cod Liver Oil Natural Medicines Comprehensive Database
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Coenzyme Q10
National Cancer Institute
- Collagen Peptides Natural Medicines Comprehensive Database
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Colloidal Silver: What You Need to Know
National Center for Complementary and Integrative Health
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Cranberry
National Center for Complementary and Integrative Health
- Creatine Natural Medicines Comprehensive Database
D
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Dandelion
National Center for Complementary and Integrative Health
- Deer Velvet Natural Medicines Comprehensive Database
- Devil's Claw Natural Medicines Comprehensive Database
- DHEA Natural Medicines Comprehensive Database
- Dong Quai Natural Medicines Comprehensive Database
E
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Echinacea
National Center for Complementary and Integrative Health
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Elderberry
National Center for Complementary and Integrative Health
- Eleuthero Natural Medicines Comprehensive Database
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Ephedra
National Center for Complementary and Integrative Health
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Essiac/Flor Essence
National Cancer Institute
- Eucalyptus Natural Medicines Comprehensive Database
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European Mistletoe
National Center for Complementary and Integrative Health
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Evening Primrose Oil
National Center for Complementary and Integrative Health
F
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Fenugreek
National Center for Complementary and Integrative Health
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Feverfew
National Center for Complementary and Integrative Health
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Flaxseed and Flaxseed Oil
National Center for Complementary and Integrative Health
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Folate
National Institutes of Health, Office of Dietary Supplements
- Folic Acid Natural Medicines Comprehensive Database
- Fucus Vesiculosus Natural Medicines Comprehensive Database
G
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Garlic
National Center for Complementary and Integrative Health
- Gelatin Natural Medicines Comprehensive Database
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Ginger
National Center for Complementary and Integrative Health
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Ginkgo
National Center for Complementary and Integrative Health
- Glucosamine Natural Medicines Comprehensive Database
- Goji Natural Medicines Comprehensive Database
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Goldenseal
National Center for Complementary and Integrative Health
- Grape Natural Medicines Comprehensive Database
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Grape Seed Extract
National Center for Complementary and Integrative Health
- Grapefruit Natural Medicines Comprehensive Database
- Green Coffee Natural Medicines Comprehensive Database
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Green Tea
National Center for Complementary and Integrative Health
- Guarana Natural Medicines Comprehensive Database
- Gymnema Natural Medicines Comprehensive Database
H
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Hawthorn
National Center for Complementary and Integrative Health
- Hibiscus sabdariffa Natural Medicines Comprehensive Database
- Honey Natural Medicines Comprehensive Database
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Hoodia
National Center for Complementary and Integrative Health
- Hops Natural Medicines Comprehensive Database
- Horny Goat Weed Natural Medicines Comprehensive Database
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Horse Chestnut
National Center for Complementary and Integrative Health
- Horsetail Natural Medicines Comprehensive Database
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Hydrazine Sulfate
National Cancer Institute
K
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Kava
National Center for Complementary and Integrative Health
L
- Lactobacillus acidophilus Natural Medicines Comprehensive Database
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Laetrile/Amygdalin
National Cancer Institute
- L-Arginine Natural Medicines Comprehensive Database
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Lavender
National Center for Complementary and Integrative Health
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Licorice Root
National Center for Complementary and Integrative Health
- Lipase Natural Medicines Comprehensive Database
- L-Tryptophan Natural Medicines Comprehensive Database
- Lutein Natural Medicines Comprehensive Database
- Lycopene Natural Medicines Comprehensive Database
M
- Maca Natural Medicines Comprehensive Database
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Magnesium
National Institutes of Health, Office of Dietary Supplements
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Manganese
National Institutes of Health, Office of Dietary Supplements
- Mangosteen Natural Medicines Comprehensive Database
- Maritime Pine Natural Medicines Comprehensive Database
- Melatonin Natural Medicines Comprehensive Database
- Methylsulfonylmethane (MSM) Natural Medicines Comprehensive Database
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Milk Thistle
National Cancer Institute
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Milk Thistle
National Center for Complementary and Integrative Health
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Mistletoe Extracts
National Cancer Institute
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Mugwort
National Center for Complementary and Integrative Health
N
- N-Acetyl Cysteine (NAC) Natural Medicines Comprehensive Database
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Niacin
National Institutes of Health, Office of Dietary Supplements
- Niacinamide Natural Medicines Comprehensive Database
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Noni
National Center for Complementary and Integrative Health
O
- Oats Natural Medicines Comprehensive Database
- Olive Natural Medicines Comprehensive Database
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Omega-3 Supplements: In Depth
National Center for Complementary and Integrative Health
- Omega-6 Fatty Acids Natural Medicines Comprehensive Database
- Oregano Natural Medicines Comprehensive Database
- Oscillococcinum Natural Medicines Comprehensive Database
P
- Palm Oil Natural Medicines Comprehensive Database
- Panax Ginseng Natural Medicines Comprehensive Database
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Pantothenic Acid
National Institutes of Health, Office of Dietary Supplements
- Papaya Natural Medicines Comprehensive Database
- Pau D'Arco Natural Medicines Comprehensive Database
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PC-SPES
National Cancer Institute
- Peanut Oil Natural Medicines Comprehensive Database
- Pennyroyal Natural Medicines Comprehensive Database
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Peppermint Oil
National Center for Complementary and Integrative Health
- Phosphate Salts Natural Medicines Comprehensive Database
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Pomegranate
National Center for Complementary and Integrative Health
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Probiotics: Usefulness and Safety
National Center for Complementary and Integrative Health
- Propolis Natural Medicines Comprehensive Database
Q
- Quercetin Natural Medicines Comprehensive Database
R
- Raspberry Ketone Natural Medicines Comprehensive Database
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Red Clover
National Center for Complementary and Integrative Health
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Red Yeast Rice
National Center for Complementary and Integrative Health
- Reishi Mushroom Natural Medicines Comprehensive Database
- Resveratrol Natural Medicines Comprehensive Database
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Riboflavin
National Institutes of Health, Office of Dietary Supplements
- Roman Chamomile Natural Medicines Comprehensive Database
- Rose Hip Natural Medicines Comprehensive Database
S
- Saccharomyces Boulardii Natural Medicines Comprehensive Database
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S-Adenosyl-L-Methionine (SAMe): In Depth
National Center for Complementary and Integrative Health
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Sage
National Center for Complementary and Integrative Health
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Saw Palmetto
National Center for Complementary and Integrative Health
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Selenium
National Institutes of Health, Office of Dietary Supplements
- Senna Natural Medicines Comprehensive Database
- Shark Cartilage Natural Medicines Comprehensive Database
- Slippery Elm Natural Medicines Comprehensive Database
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Soy
National Center for Complementary and Integrative Health
- Spearmint Natural Medicines Comprehensive Database
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St. John's Wort
National Center for Complementary and Integrative Health
- Stevia Natural Medicines Comprehensive Database
T
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Tea Tree Oil
National Center for Complementary and Integrative Health
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Thiamin
National Institutes of Health, Office of Dietary Supplements
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Thunder God Vine
National Center for Complementary and Integrative Health
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Turmeric
National Center for Complementary and Integrative Health
V
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Valerian
National Center for Complementary and Integrative Health
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Vitamin A
National Institutes of Health, Office of Dietary Supplements
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Vitamin B12
National Institutes of Health, Office of Dietary Supplements
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Vitamin B6
National Institutes of Health, Office of Dietary Supplements
- Vitamin B6 Natural Medicines Comprehensive Database
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Vitamin C
National Institutes of Health, Office of Dietary Supplements
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Vitamin D
National Institutes of Health, Office of Dietary Supplements
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Vitamin E
National Institutes of Health, Office of Dietary Supplements
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Vitamin K
National Institutes of Health, Office of Dietary Supplements
W
- Whey Protein Natural Medicines Comprehensive Database
- Wild Yam Natural Medicines Comprehensive Database
- Willow Bark Natural Medicines Comprehensive Database
Y
- Yerba Mate Natural Medicines Comprehensive Database
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Yohimbe
National Center for Complementary and Integrative Health
0-9
- 5-HTP Natural Medicines Comprehensive Database