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What's commonly discussed — for how you want to feel.
Browse curated nutrients, compounds, supplements and foods by the feeling they come up around. Nothing here says anything works — just what people talk about, with the state of the research shown as-is.
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Browse supplements · 175
Clear filtersA drink mix providing electrolyte minerals such as sodium and potassium.
A concentrated source of the omega-3 fatty acids EPA and DHA. Commonly discussed in relation to mood and focus.
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A hormone the body produces on a daily cycle; also made synthetically and sold as a supplement.
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A supplement combining many vitamins and minerals in one product.
A supplement providing the omega-3 fatty acids EPA and DHA.
A multivitamin formulated for use before and during pregnancy.
A powdered supplement providing protein, which may be from whey or from plant sources.
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A supplement combining the B-group vitamins in one product.
A form of the amino-acid-derived compound carnitine, sold as a supplement.
An adaptogenic herb commonly discussed in relation to stress, mood, and sleep. Human research is emerging.
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A creeping marsh herb (Bacopa monnieri) used in Ayurvedic tradition and sold as an extract.
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A yellow compound found in plants such as barberry and goldenseal; sold as an extract.
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An amino acid found in watermelon and made in the body; sold as a supplement, often as citrulline malate.
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A powdered supplement blending dried vegetables, fruits, and plant extracts.
A fragrant herb also known as tulsi (Ocimum sanctum), used in Indian tradition and sold as a tea or extract.
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The most abundant amino acid in the body, also found in protein-rich foods; sold as a supplement.
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An amino acid the body makes and also obtains from protein-rich foods; sold as a supplement.
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The root of a Peruvian plant (Lepidium meyenii), usually dried and sold as a powder.
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Nicotinamide adenine dinucleotide, a coenzyme present in all living cells; sold as a supplement and often discussed alongside its precursors.
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A supplement form of nicotinamide mononucleotide (NMN), a compound the body can use as a building block for NAD+ (nicotinamide adenine dinucleotide). Taken as capsules, tablets, or powder.
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Pyrroloquinoline quinone, a compound found in small amounts in foods such as fermented soy and green vegetables; sold as a supplement.
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A sulfur-containing compound the body makes and that is also found in small amounts in foods; sold as a supplement.
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Broken-down collagen protein rich in glycine and proline. Commonly discussed in relation to skin and joints; evidence varies by outcome, dose, and study design.
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An extract of the leaves of the Ginkgo biloba tree, one of the oldest surviving tree species.
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The root of Panax ginseng, a plant long used in East Asian herbal tradition and sold as a powder, tea, or extract.
A compound found naturally in the body and in the shells of shellfish; sold as a supplement, often together with chondroitin.
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A flowering plant (Silybum marianum) whose seeds contain a group of compounds called silymarin; sold as an extract.
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5-hydroxytryptophan, a compound the body makes from the amino acid tryptophan; the supplement form is typically extracted from the seeds of the Griffonia simplicifolia plant.
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Gamma-aminobutyric acid, a molecule made in the body and present in some fermented foods; sold as a supplement.
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A functional mushroom commonly discussed in relation to focus and cognition. Human research so far is limited.
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Methylsulfonylmethane, a sulfur-containing compound found in small amounts in some foods; sold as a supplement.
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An adaptogenic herb commonly discussed in relation to fatigue and mental performance under stress. Human research is limited.
A supplement made from açaí, a dark purple palm-fruit rich in anthocyanins and polyphenols, taken as powder or capsules.
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A supplement made by aging garlic (Allium sativum) over an extended period to produce a milder, largely odorless extract; a source of garlic's organosulfur compounds. Taken as capsules or tablets.
AHCC (active hexose correlated compound), a supplement made from cultured shiitake mushroom mycelia, taken as capsules; a source of mushroom-derived polysaccharides.
A supplement form of Alpha-GPC, a choline-containing compound, taken as capsules; a popular nootropic-stack ingredient.
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A supplement form of anserine, an imidazole dipeptide related to carnosine and found naturally in fish and poultry muscle. Taken as capsules or tablets.
A supplement form of aojiru, a green-vegetable juice powder (often kale or barley grass) providing fiber and plant nutrients, mixed with water or milk; a traditional Japanese product.
A supplement form of astaxanthin, a red carotenoid antioxidant derived from algae, taken as softgels or capsules.
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A supplement form of the branched-chain amino acids leucine, isoleucine, and valine, taken as a powder or capsules; a common sports-nutrition product.
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A supplement protein powder made from beef (typically hydrolyzed beef protein isolate), a dairy-free animal-protein option popular in paleo and carnivore-style diets; mixed into water or a shake. A concentrated source of protein.
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A food-and-supplement powder made from dried, ground beetroot (Beta vulgaris); it carries the beet's natural nitrates, the pigment betalains, and nutrients such as folate and potassium. Stirred into water, smoothies, or pre-workout drinks.
A supplement form of the amino acid beta-alanine, taken as a powder or capsules; a common pre-workout and sports-nutrition ingredient.
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A supplement providing beta-glucan, a soluble fiber (a polysaccharide) found in the cell walls of baker's and brewer's yeast and in oats, barley, and some mushrooms; product forms are usually yeast (1,3/1,6) or oat beta-glucan. Taken as capsules or a powder.
A supplement form of betaine hydrochloride, which combines betaine (trimethylglycine) with hydrochloric acid; used as a source of stomach acid in digestive supplements. Distinct from betaine anhydrous (TMG). Taken as capsules or tablets, usually with meals.
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A supplement form of bilberry, a berry rich in anthocyanins, taken as softgels or capsules; a popular eye-care category product in Japan.
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A supplement form of biotin (vitamin B7), a water-soluble B vitamin, taken as capsules or tablets.
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A supplement made from the root and rhizome of black cohosh (Actaea racemosa / Cimicifuga racemosa), a North-American plant, taken as capsules, tablets, or an extract. Traditionally taken by some women around menopause.
A supplement made from black ginger (Kaempferia parviflora), a ginger relative native to Thailand and used there in traditional preparations, characterized by its polymethoxyflavones. Taken as capsules or tablets.
A supplement oil pressed from the seeds of Nigella sativa, rich in linoleic acid and containing the compound thymoquinone. Taken as liquid or softgels.
A supplement form of black vinegar, an aged rice vinegar whose characteristic component is acetic acid, taken as capsules or drinks; a traditional Japanese product.
A supplement form of the trace mineral boron, sold as boron citrate, boron glycinate, or sodium borate, taken as capsules or tablets.
A supplement made from the gum resin of the Boswellia serrata tree (Indian frankincense), a source of constituents called boswellic acids. Taken as capsules or tablets.
A concentrated supplement form of bromelain, a group of protein-digesting (proteolytic) enzymes from the pineapple plant (Ananas comosus). Taken as tablets or capsules, sometimes enteric-coated.
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A supplement form of the mineral calcium, sold as calcium carbonate or citrate and often combined with vitamin D and vitamin K2, taken as tablets or capsules.
A supplement form of carnosine, a dipeptide made of the amino acids beta-alanine and histidine, taken as capsules or tablets.
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A supplement protein powder made from casein, the slower-digesting protein fraction of cow's milk; a counterpart to whey protein. Mixed into water or milk.
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A supplement made from chaga (Inonotus obliquus), a mushroom that grows on birch trees, taken as powder, tea, or capsules; a source of beta-glucans and polyphenols.
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A supplement form of chlorella, a green freshwater algae rich in chlorophyll and plant protein, taken as tablets or powder; a traditional Japanese product.
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A supplement form of the nutrient choline, sold as choline bitartrate and often included in nootropic products, taken as capsules or tablets.
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A supplement form of chondroitin sulfate, a component of cartilage, taken as tablets or capsules and often combined with glucosamine.
A supplement form of the trace mineral chromium, often as chromium picolinate, taken as tablets or capsules.
A supplement form of citicoline (CDP-choline), a choline-containing compound, taken as capsules; a popular nootropic-stack ingredient.
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A traditional supplement oil from cod liver, providing the omega-3 fatty acids EPA and DHA along with vitamin A and vitamin D. Taken as liquid or softgels.
A supplement made from bovine colostrum, the first milk cows produce after calving, containing proteins, peptides, and other milk components. Taken as powder or capsules.
A supplement form of coenzyme Q10, sold as ubiquinone or ubiquinol, taken as softgels or capsules.
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A supplement made from cordyceps, a fungus used in traditional East Asian preparations, taken as capsules or powder; a source of beta-glucans.
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A supplement made from cranberry fruit, rich in polyphenols (proanthocyanidins) and anthocyanins, taken as capsules, tablets, or juice concentrate.
A supplement form of creatine, most often creatine monohydrate, taken as a powder or capsules; a popular sports-nutrition staple.
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A supplement form of the essential amino acids, taken as a powder or capsules; a common sports-nutrition product.
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A supplement protein powder made from dried egg whites (albumen); a dairy-free protein source and a counterpart to whey and casein. Mixed into water or food.
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A supplement made from elderberries (Sambucus nigra), a dark berry rich in anthocyanins and vitamin C, taken as syrup, gummies, or capsules.
A concentrated carbohydrate gel or jelly-pouch used during endurance exercise such as marathon running or cycling, supplying fast carbohydrate on the move; some variants also contain added caffeine (check the label). An endurance-sport staple.
A supplement form of equol, a compound derived from soy isoflavones, taken as tablets or capsules; a widely sold product in Japan.
A supplement made from Euglena gracilis, a microalga known in Japan as midorimushi, providing plant protein, beta-carotene, and the storage fiber paramylon, a beta-glucan. Taken as capsules or powder.
A supplement oil from evening primrose seeds, a source of the omega-6 fatty acid GLA (gamma-linolenic acid). Taken as softgels.
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A supplement providing fisetin, a plant flavonoid (a flavonol) found in small amounts in foods such as strawberries, apples, persimmons, and onions. Taken as capsules or tablets.
A supplement oil pressed from flaxseeds, a plant source of the omega-3 fatty acid ALA (alpha-linolenic acid). Taken as liquid or softgels.
A supplement form of folate (vitamin B9), sold as folic acid or methylfolate, taken as tablets or capsules and commonly included in prenatal products.
A supplement made from the root of Coleus forskohlii (Plectranthus barbatus), an Indian plant, characterized by the compound forskolin. Taken as capsules or tablets.
A supplement made from the rind of the Garcinia cambogia (Garcinia gummi-gutta) fruit, a source of hydroxycitric acid (HCA). Taken as capsules or tablets.
A concentrated supplement form of ginger (Zingiber officinale) root — the same plant used as a cooking spice — standardized and taken as capsules or tablets; a source of the pungent compounds gingerols. Distinct from ginger used as a food or tea.
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A supplement form of glucomannan, a soluble dietary fiber obtained from the root of konjac (Amorphophallus konjac). Taken as capsules or powder.
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A supplement providing glucosylceramide, a plant-derived glycosphingolipid obtained from sources such as rice, wheat, or konjac. It is a common ingredient in beauty-oriented supplements in Japan and is taken as capsules or tablets.
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A supplement form of glutathione, an antioxidant peptide made from cysteine, glycine, and glutamate, taken as tablets, capsules, or lozenges.
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A supplement form of the amino acid glycine, taken as a powder or capsules; it has a mildly sweet taste.
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A supplement made from grape seeds, standardized for its polyphenol content (proanthocyanidins), taken as capsules or tablets.
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A concentrated supplement made from green tea (Camellia sinensis) leaves, standardized for its catechins — chiefly EGCG (epigallocatechin gallate) — and usually containing some caffeine and a small amount of the amino acid theanine. Taken as capsules or tablets.
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A supplement made from the leaves of Gymnema sylvestre, a woody climbing plant used in traditional Indian preparations; a source of constituents called gymnemic acids. Taken as capsules, tablets, or tea.
A supplement made from the leaves, flowers, and berries of the hawthorn shrub (Crataegus), used in traditional herbal preparations; a source of plant polyphenols (flavonoids). Taken as capsules, tablets, tea, or extract.
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A supplement protein powder made from ground hemp seeds (Cannabis sativa, the food/fibre variety), a dairy-free plant-protein option that also carries dietary fiber; mixed into water or a shake.
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A supplement form of HMB (beta-hydroxy beta-methylbutyrate), a leucine metabolite, taken as capsules or powder; a sports-nutrition product.
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A supplement form of hyaluronic acid, taken as tablets or capsules; a popular beauty-category product in Japan.
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A supplement form of indigestible (resistant) dextrin, a soluble dietary fiber made from starch, sold as a powder to add to foods and drinks; a common product in Japan.
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A supplement form of inositol (myo-inositol), a sugar-like compound naturally found in foods and the body, taken as a powder or capsules.
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A supplement form of inulin, a prebiotic dietary fiber (a fructan) found in plants such as chicory root and Jerusalem artichoke. Stirred into water or food as a powder, or taken as capsules.
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A supplement form of the trace mineral iodine, sold as potassium iodide or kelp extract, taken as tablets, capsules, or drops.
A supplement form of the mineral iron, sold as ferrous salts or gentler iron bisglycinate, taken as tablets or capsules.
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A children's supplement, commonly a chewable or gummy, providing the omega-3 fatty acid DHA (docosahexaenoic acid) from fish or algal oil, at doses formulated for children. A generic category (not a specific brand), logged as one item.
A children's multivitamin, commonly a chewable or gummy, combining several vitamins and sometimes minerals at doses formulated for children. A generic category (not a specific brand), logged as one item.
A supplement oil extracted from krill, small shrimp-like crustaceans, providing the omega-3 fatty acids EPA and DHA in phospholipid form along with the carotenoid astaxanthin. Taken as softgels.
A supplement form of the amino acid L-arginine, taken as capsules, tablets, or powder; also used as an ingredient in some pre-workout products.
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A supplement form of the amino-acid-derived compound L-carnitine, taken as capsules, tablets, or liquid; also sold as L-carnitine L-tartrate.
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A supplement form of the sulfur-containing amino acid L-cysteine, which the body can use as a building block for glutathione. Taken as capsules or tablets.
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A supplement form of the essential amino acid L-lysine, taken as tablets, capsules, or powder.
A supplement form of L-theanine, an amino acid found in tea, taken as capsules or tablets and sometimes paired with caffeine.
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A supplement providing L-tryptophan, an essential amino acid found in protein-rich foods; in the body it is a precursor to serotonin and to niacin (vitamin B3), and it is also the precursor to 5-HTP. Taken as capsules or tablets.
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A supplement providing lactoferrin, an iron-binding glycoprotein naturally present in cow's and human milk and in other bodily fluids; supplement forms are usually purified from cow's milk. A common ingredient in Japanese functional-food products, taken as tablets or capsules, often enteric-coated.
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A supplement form of lecithin, a mixture of phospholipids and a source of choline, usually from soy or sunflower, taken as softgels, granules, or powder.
A supplement form of lutein, a plant carotenoid often combined with zeaxanthin, taken as softgels or capsules.
A supplement form of the mineral magnesium, sold as magnesium glycinate, citrate, and other salts, taken as capsules, tablets, or powder.
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A high-calorie supplement powder (weight gainer) combining protein with a large share of carbohydrate, formulated for people aiming to add bulk; mixed into milk or water as a shake. Distinct from a plain protein powder.
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A supplement made from mastic, a resin from the mastic tree (Pistacia lentiscus), taken as capsules, powder, or chewing resin.
A supplement oil of medium-chain triglycerides (MCTs), usually fractionated from coconut or palm oil and taken by the spoonful or stirred into drinks and foods; composed entirely of fat, in the form of saturated medium-chain fatty acids.
A formulated shake designed to replace a meal, providing a balanced mix of protein, carbohydrate, and fat along with added fiber and a vitamin-and-mineral blend.
A supplement made from the leaves of the white mulberry (Morus alba), used in traditional East Asian preparations; a source of plant fiber and of the compound 1-deoxynojirimycin (DNJ). Taken as capsules, powder, or tea.
A supplement combining several mushroom species such as lion's mane, reishi, cordyceps, and chaga, taken as capsules or powder; a source of beta-glucans.
A supplement form of N-acetylcysteine (NAC), a source of the amino acid cysteine, taken as capsules or tablets.
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A supplement form of nattokinase, an enzyme derived from the fermented-soybean food natto, taken as capsules or tablets.
A supplement form of niacin (nicotinic acid), one of the forms of vitamin B3, a water-soluble B vitamin. Taken as tablets or capsules.
A supplement form of niacinamide (nicotinamide), one of the forms of vitamin B3; unlike nicotinic acid it does not cause skin flushing. Taken as tablets or capsules, and also used as an ingredient in some topical skincare products.
A supplement form of nicotinamide riboside (NR), a form of vitamin B3 that the body can use as a building block for NAD+ (nicotinamide adenine dinucleotide). Taken as capsules or tablets.
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A supplement and food product made from deactivated yeast, providing plant protein and B vitamins such as thiamin, riboflavin, and niacin. Sold as flakes, powder, or as brewer's yeast tablets.
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A supplement made from the leaves of the olive tree (Olea europaea), characterized by the phenolic compound oleuropein. Taken as capsules, tablets, or a liquid extract.
A supplement made from the oil of oregano (Origanum vulgare or related species), rich in the volatile compounds carvacrol and thymol. Sold as softgels or as diluted liquid drops.
A supplement form of the amino acid ornithine, associated with shijimi clams, taken as tablets or capsules; a common product in Japan.
A supplement providing ox bile, a dried preparation of bile salts from cattle; used as a source of bile acids in digestive supplements, particularly for the digestion of fats. Taken as capsules or tablets with meals.
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A supplement providing papain, a protein-digesting (proteolytic) enzyme obtained from the latex of the unripe papaya fruit (Carica papaya). Taken as tablets or capsules.
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A supplement protein powder made from yellow peas (Pisum sativum), the dominant plant-protein isolate; a dairy-free counterpart to whey, mixed into water or a shake. It is a concentrated source of plant protein.
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A supplement form of phosphatidylcholine, a phospholipid and source of choline, taken as softgels or capsules.
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A supplement form of phosphatidylserine, a phospholipid, taken as softgels or capsules; used in some nootropic products.
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A supplement made from animal placenta extract, containing amino acids such as glycine and proline, taken as tablets, capsules, or drinks; a beauty-category product in Japan.
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A powdered protein supplement made from plant sources such as pea, rice, soy, or hemp; its headline nutrient is protein.
A supplement form of the mineral potassium, sold as potassium chloride, citrate, or gluconate, taken as tablets or capsules; also common in electrolyte products.
A supplement blend taken before exercise, typically combining caffeine with ingredients such as beta-alanine and citrulline, sold as a powder.
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A supplement containing live beneficial bacteria such as lactic-acid bacteria and bifidobacteria, taken as capsules, tablets, or powder.
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A supplement made from propolis, a resin-like material honeybees collect from plants, containing plant polyphenols (flavonoids). Taken as capsules, tablets, or drops.
A supplement made from psyllium husk, the seed husk of Plantago ovata, a source of soluble dietary fiber. Mixed into water or taken as capsules.
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A supplement made from the bark of the French maritime pine (Pinus pinaster), standardized for its plant polyphenols (proanthocyanidins); Pycnogenol is a trademarked form of pine bark extract. Taken as tablets or capsules.
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A supplement form of quercetin, a plant flavonoid and antioxidant, taken as capsules or tablets.
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A supplement made from the flowering tops of red clover (Trifolium pratense), taken as capsules, tablets, tea, or an extract; a source of isoflavones. Traditionally taken by some women around menopause.
A supplement made from reishi (Ganoderma lingzhi), a mushroom used in traditional East Asian preparations, taken as capsules, powder, or extract; a source of beta-glucans.
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A supplement form of resveratrol, a plant polyphenol antioxidant, taken as capsules or tablets.
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A supplement protein powder made from brown rice, a dairy-free plant-protein option often used in vegan blends; mixed into water or a shake. A concentrated source of plant protein.
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A supplement made from royal jelly, a substance honeybees produce, containing proteins, amino acids, and pantothenic acid. Taken as capsules, tablets, or liquid.
A supplement made from the dried stigmas of the saffron crocus (Crocus sativus) — the same spice used in cooking — standardized for constituents such as crocin and safranal. Taken as capsules or tablets.
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A supplement made from Salacia (Salacia reticulata / Salacia chinensis), a woody plant used in traditional South and Southeast Asian preparations; a source of constituents such as salacinol. Taken as capsules, tablets, or tea.
A supplement made from the berries of the saw palmetto palm (Serenoa repens), used as a source of the plant's fatty acids and phytosterols. Taken as softgels, capsules, or tablets.
A supplement form of the trace mineral selenium, often as selenomethionine, taken as tablets or capsules.
A supplement providing serrapeptase (serratiopeptidase), a protein-digesting (proteolytic) enzyme originally isolated from bacteria associated with silkworms. Taken as enteric-coated tablets or capsules.
A supplement form of sesamin, a lignan antioxidant from sesame seeds, taken as softgels or capsules; a well-known Japanese product.
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A supplement made from shilajit, a tar-like exudate collected from rock in mountain ranges such as the Himalayas; it is a source of fulvic acid and minerals. Taken as a resin, powder, or capsules.
A supplement protein powder made from soybeans (soy protein isolate or concentrate), a major plant-protein type distinct from whey and generic plant blends; mixed into water or a shake. It is a concentrated source of plant protein and also carries soy isoflavones.
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A supplement providing spermidine, a naturally occurring polyamine also present in foods such as wheat germ, soybeans, mushrooms, and aged cheese; product forms are often made from wheat-germ extract. Taken as capsules or tablets.
A supplement made from spirulina, a blue-green algae, taken as tablets or powder; a source of plant protein, chlorophyll, and beta-carotene.
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A supplement providing sulforaphane, a sulfur compound (an isothiocyanate) formed from glucoraphanin in cruciferous vegetables; product forms are typically made from broccoli sprout or broccoli seed extract. Taken as capsules or tablets.
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A supplement form of the amino acid taurine, taken as capsules or powder.
A supplement form of trimethylglycine (TMG, betaine), an amino-acid derivative found in beets, taken as a powder or capsules.
A supplement made from the root of tongkat ali (Eurycoma longifolia), a Southeast Asian plant, characterized by compounds called quassinoids such as eurycomanone. Taken as capsules or as a standardized extract.
A supplement form of turmeric, usually standardized for its curcumin content, taken as capsules or tablets.
A supplement providing urolithin A, a compound the gut microbiome can form from ellagitannins in foods such as pomegranate, walnuts, and berries; supplement forms provide it directly. Taken as capsules, tablets, or a powder.
A concentrated supplement made from the root of valerian (Valeriana officinalis), a source of constituents such as valerenic acid; distinct from valerian tea. Taken as capsules, tablets, or extract.
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A supplement form of vitamin A, sold as retinol or as beta-carotene, taken as softgels or capsules.
A supplement form of vitamin B1 (thiamine), a water-soluble B vitamin, sometimes sold as benfotiamine, a fat-soluble derivative. Taken as tablets or capsules.
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A supplement form of vitamin B12, often as methylcobalamin or cyanocobalamin, taken as tablets, lozenges, or sublingual drops.
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A supplement form of vitamin B6 (pyridoxine), a water-soluble B vitamin, taken as tablets or capsules.
A supplement form of vitamin C (ascorbic acid), taken as tablets, capsules, or powder. Vitamin C is a water-soluble vitamin and antioxidant.
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A supplement form of vitamin D, typically vitamin D3 (cholecalciferol), taken as a softgel, capsule, or drops. Provides the fat-soluble vitamin D.
A combination supplement providing vitamin D3 (cholecalciferol) together with vitamin K2, often the MK-7 form, taken as softgels, capsules, or drops.
A supplement form of vitamin E (tocopherols), a fat-soluble antioxidant vitamin, taken as softgels or capsules.
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A supplement form of vitamin K2, often the MK-7 form and sometimes combined with vitamin D3, taken as capsules or softgels.
A supplement made from the dried fruit of the chaste tree (Vitex agnus-castus), used in traditional European herbal preparations. Taken as capsules, tablets, or extract.
A supplement form of whey protein, a milk-derived protein powder rich in branched-chain amino acids, taken as a shake; a popular sports-nutrition staple.
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A supplement form of the mineral zinc, taken as tablets, capsules, or lozenges; often paired with a small amount of copper to keep the two minerals in balance.
A combination supplement of zinc, magnesium, and vitamin B6, taken as capsules; a common sports-nutrition product.