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Commonly discussed for Focus53
Clear filtersAttention, mental clarity, and staying on task.
CacaoFoodThe bean behind dark chocolate — a concentrated source of polyphenols, theobromine, and magnesium.
A stimulant found in tea, coffee, and cacao. One of the most studied compounds; commonly discussed in relation to alertness, and — when taken later in the day — sleep.
One of the most studied supplements. Commonly discussed in relation to strength and recovery, and more recently in relation to mental energy and focus.
A marine omega-3 fatty acid that is a major structural fat in the brain and eyes. Commonly discussed with focus and long-term brain health.
An oil derived from fish tissues that provides the omega-3 fatty acids EPA and DHA.
A short daily session of guided breathing or mindfulness. Commonly discussed for stress, anxiety and focus.
NutsFoodTree nuts provide vitamin E, magnesium, fiber, and (in walnuts) plant omega-3.
A supplement providing the omega-3 fatty acids EPA and DHA.
A form of the amino-acid-derived compound carnitine, sold as a supplement.
A creeping marsh herb (Bacopa monnieri) used in Ayurvedic tradition and sold as an extract.
Polyphenols concentrated in green tea and matcha. Often discussed in relation to antioxidant interest and alertness.
An essential nutrient related to the B vitamins, used in liver function, brain signaling, and cell membranes. Eggs, liver, fish, and soy are notable sources.
An amino acid found mainly in tea leaves. Often discussed in relation to calm focus, especially alongside caffeine.
An amino acid the body makes and also obtains from protein-rich foods; sold as a supplement.
An amino acid found naturally in the body and in seafood and meat; also added to some drinks and sold as a supplement.
A botanical supplement category made from the leaves of Ginkgo biloba, supplied as a dried leaf preparation or extract.
The root of Panax ginseng, a plant long used in East Asian herbal tradition and sold as a powder, tea, or extract.
A functional mushroom commonly discussed in relation to focus and cognition. Human research so far is limited.
A botanical supplement category made from Rhodiola rosea, commonly supplied as a dried root or extract.
A gentle stimulant related to caffeine, found mainly in cacao. Often discussed in relation to mood and mild alertness.
Alpha-glycerophosphocholine (Alpha-GPC), a choline-containing compound used as an ingredient in some nootropic products.
A supplement form of Alpha-GPC, a choline-containing compound, taken as capsules; a popular nootropic-stack ingredient.
Black teaDrinkAn oxidized tea brewed from Camellia sinensis. Contains caffeine and the polyphenol theaflavins.
The salted, brined eggs of sturgeon and other fish, served as a delicacy; a source of protein, vitamin B12, selenium, and vitamin D.
A supplement form of the nutrient choline, sold as choline bitartrate and often included in nootropic products, taken as capsules or tablets.
Citicoline (CDP-choline), a choline-containing compound used as an ingredient in some nootropic products.
A supplement form of citicoline (CDP-choline), a choline-containing compound, taken as capsules; a popular nootropic-stack ingredient.
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.
CoffeeDrinkA brewed beverage from roasted coffee beans. Contains caffeine and the polyphenol chlorogenic acid.
ColaDrinkA sweetened carbonated soft drink flavored in the cola style, carrying added caffeine and sugars.
Coffee steeped cold or served over ice, made from cold-brewed or chilled brewed coffee; a source of caffeine, chlorogenic acid, and plant polyphenols.
Energy drinkDrinkA sweetened carbonated drink formulated with caffeine and typically taurine and added B vitamins; a source of caffeine, sugars, taurine, and B vitamins such as niacin, vitamin B6, and vitamin B12.
EspressoDrinkA concentrated coffee brewed by forcing hot water through finely ground coffee under pressure; a source of caffeine, chlorogenic acid, and plant polyphenols.
Green teaDrinkAn unoxidized tea from Camellia sinensis. Contains caffeine, the amino acid L-theanine, and catechin polyphenols such as EGCG.
GuaranáDrinkGuaraná (Paullinia cupana), an Amazonian seed used as a powder and as the base of Brazilian sodas, energy drinks, and supplements; the seed is naturally rich in caffeine (historically called guaranine) along with theobromine and polyphenols.
Instant coffeeDrinkCoffee prepared from dried, dissolvable coffee granules stirred into hot water; a source of caffeine, chlorogenic acid, and plant polyphenols.
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 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 L-theanine, an amino acid found in tea, taken as capsules or tablets and sometimes paired with caffeine.
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 combining several mushroom species such as lion's mane, reishi, cordyceps, and chaga, taken as capsules or powder; a source of beta-glucans.
Oolong teaDrinkA partially oxidized Chinese tea between green and black in style; it carries catechins, polyphenols, caffeine, and the amino acid theanine.
A supplement form of phosphatidylcholine, a phospholipid and source of choline, taken as softgels or capsules.
A phospholipid naturally present in cell membranes, used as an ingredient in some nootropic products.
A supplement form of phosphatidylserine, a phospholipid, taken as softgels or capsules; used in some nootropic products.
Quail eggFoodA small speckled egg from quail, boiled or used as a garnish; a source of protein, vitamin B12, choline, selenium, and iron.
RosemaryFoodA woody, needle-leaved aromatic herb used to season roasts and breads; contains plant polyphenols.
TroutFoodA freshwater oily fish. A dietary source of long-chain omega-3 fats, protein, and vitamin B12.
TunaFoodA lean saltwater fish eaten fresh or canned. A dietary source of protein, vitamin B12, and selenium.
WalnutsFoodA tree nut with a distinctive folded shape. A dietary source of alpha-linolenic acid (a plant omega-3 fat), manganese, and copper.
White teaDrinkA minimally processed tea made from young leaves and buds, with a delicate flavor; it carries catechins, polyphenols, caffeine, and theanine.
Yerba mateDrinkA steeped infusion of dried holly leaves traditional to southern South America; a source of caffeine, chlorogenic acid, theobromine, and plant polyphenols.