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Browse nutrients · 47
Clear filtersA plant-based omega-3 fatty acid found in chia seeds, flax, and walnuts. The body converts only a small share to EPA and DHA.
Commonly discussed for
A water-soluble B vitamin (B7) involved in the metabolism of fats, carbohydrates, and protein. Found in eggs, nuts, seeds, and salmon.
The main mineral in bones and teeth, also involved in muscle and nerve function. Found in dairy, tofu, sardines, and leafy greens.
The body's main everyday source of dietary energy, found in grains, starchy vegetables, legumes, and fruit. Carbohydrate covers starches, sugars, and dietary fiber.
A mineral and electrolyte that works with sodium in fluid balance and is part of stomach acid. Most dietary chloride comes together with sodium from salt.
A waxy substance the body makes and also takes in from animal foods such as eggs, shellfish, meat, and dairy; it is a building block for cells and certain hormones.
A trace mineral involved in helping insulin handle carbohydrates, fats, and protein. Found in broccoli, whole grains, and meats.
A trace mineral involved in forming red blood cells, maintaining nerves and connective tissue, and antioxidant enzymes. Found in shellfish, nuts, seeds, and dark chocolate.
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.
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A measure of the fuel food provides — expressed in kilocalories (Calories) or kilojoules — rather than a substance in itself; it comes from carbohydrate, fat, protein, and alcohol.
A marine omega-3 fatty acid concentrated in oily fish. Among the most studied nutrients, often discussed with mood and recovery.
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Plant carbohydrates your body does not fully digest. One of the most established nutrients for digestion and gut health.
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A B vitamin involved in cell growth and forming red blood cells. Abundant in leafy greens, beans, and citrus; the synthetic form folic acid is used in fortified foods.
A trace mineral the body uses to make thyroid hormones. Found in seaweed, dairy, eggs, seafood, and iodized salt.
A mineral the body uses to carry oxygen in the blood. Found in red meat, shellfish, beans, and leafy greens; often discussed in relation to energy and tiredness.
The main omega-6 polyunsaturated fatty acid — an essential fat the body cannot make, abundant in vegetable oils, nuts, and seeds.
A trace mineral involved in bone formation, metabolism, and antioxidant enzymes. Found in whole grains, nuts, legumes, and tea.
A trace mineral that acts as part of enzymes which break down certain amino acids and compounds. Found in legumes, whole grains, and nuts.
A type of unsaturated dietary fat, liquid at room temperature, found in olive oil, avocado, and many nuts.
A water-soluble B vitamin (B3) involved in energy metabolism and normal skin, nerve, and digestive function. Found in poultry, fish, peanuts, and whole grains.
A water-soluble B vitamin (B5) involved in energy metabolism and the handling of fats. Widespread in foods such as chicken, eggs, mushrooms, and avocado.
A mineral that is a major building block of bones and teeth and part of the body's energy-carrying molecules. Found in dairy, meat, fish, and legumes.
A type of unsaturated dietary fat that includes the essential omega-3 and omega-6 fatty acids; found in vegetable oils, walnuts, seeds, and fish.
An electrolyte found in avocado, lentils, and many plants, essential for fluid balance and muscle function.
A macronutrient made of amino acids that serves as a building block for muscle, enzymes, and other tissues. Found in meat, fish, eggs, dairy, beans, and soy.
A water-soluble B vitamin (B2) involved in energy metabolism and helping other B vitamins work. Found in milk, eggs, almonds, and lean meats.
A type of dietary fat that is usually solid at room temperature, found mainly in butter, cheese, fatty meats, and coconut and palm oils.
A trace mineral with antioxidant roles, notably concentrated in Brazil nuts and seafood.
A mineral and electrolyte involved in fluid balance and normal nerve and muscle function. Most dietary sodium comes from salt added to packaged and prepared foods.
A complex carbohydrate made of many linked sugar units — the main storage carbohydrate of plants such as potatoes, rice, corn, and grains.
Simple carbohydrates that taste sweet, including those naturally present in fruit and milk as well as sugars added to foods and drinks.
A water-soluble B vitamin (B1) involved in turning carbohydrates into energy and in normal nerve function. Found in whole grains, pork, legumes, and seeds.
A macronutrient and concentrated source of dietary energy that also carries the fat-soluble vitamins; found in oils, nuts, seeds, dairy, and meats.
A type of fat formed mainly when liquid oils are partially hydrogenated; small amounts also occur naturally in some meat and dairy.
A fat-soluble vitamin important for vision, skin, and normal cell growth. Preformed vitamin A comes from animal foods; plant foods supply beta-carotene the body converts to it.
A vitamin involved in red blood cell formation and nerve function, found almost only in animal foods such as meat, fish, eggs, and dairy.
A B vitamin involved in protein metabolism and in forming neurotransmitters. Found in fish, poultry, bananas, chickpeas, and potatoes.
A water-soluble antioxidant vitamin needed for collagen formation. Commonly discussed with skin and general resilience.
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A fat-soluble vitamin made in skin with sunlight and found in oily fish. Well established for bone health; often discussed with mood and energy.
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A fat-soluble antioxidant vitamin found in nuts, seeds, and avocado. Often discussed in relation to skin.
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A fat-soluble vitamin the body uses for normal blood clotting and bone maintenance. K1 comes mainly from leafy greens; the K2 form (from fermented and animal foods) is tracked separately here.
The body's most abundant component and the medium for nearly every bodily process; taken in from drinks and from water-rich foods such as fruit and vegetables.
A trace mineral involved in taste, skin, wound repair, and the body's normal defense system. Oysters, red meat, and pumpkin seeds are among the richest sources.
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.
A mineral involved in hundreds of enzymatic processes, including ones related to muscle and nervous system function. Often discussed in relation to sleep and relaxation.
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A form of vitamin K abundant in natto, discussed in research on bone and cardiovascular health.
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Boron, a trace mineral present in foods such as fruit, vegetables, nuts, and legumes; used as a supplement ingredient in forms such as boron citrate or sodium borate.