Taurine is found in highest concentrations in shellfish, dark poultry meat, and fish, with smaller amounts in dairy products and energy drinks. It’s almost entirely absent from plant foods, with seaweed being the notable exception. Your body also makes its own taurine from dietary protein, though the amount varies depending on your overall nutrition.
Shellfish and Seafood
Shellfish are by far the richest natural source. Raw scallops contain between 3,630 and 4,440 mg of taurine per 100 grams, which is an extraordinary concentration compared to any other food category. Other shellfish like mussels, clams, and oysters are also excellent sources, generally providing over 800 mg per 100 grams.
Fish is another strong source, though the exact amount depends on the species. Dark-fleshed fish like tuna and mackerel tend to contain more taurine than white-fleshed varieties. If you eat seafood regularly, even a few times a week, you’re likely getting a substantial amount of taurine from your diet.
Meat and Poultry
Dark meat from poultry is a particularly good source. A 100-gram serving of dark chicken meat provides roughly 200 mg of taurine, while the same amount of dark turkey meat delivers around 300 mg. These numbers apply to the thigh and leg portions rather than breast meat, which contains less.
Red meat, including beef and lamb, also contains taurine, with organ meats generally offering higher concentrations than muscle cuts. For most people eating a standard diet that includes meat and fish, the average daily taurine intake from food lands around 150 mg.
Dairy, Eggs, and Minimal Sources
Cow’s milk contains taurine, but the amounts are quite small. Whole, low-fat, and nonfat milk all fall in the range of about 1.4 to 3.4 mg per 100 mL. That translates to roughly 6 mg per cup, which is negligible compared to a serving of seafood or poultry. Yogurt contains even less, around 0.7 to 0.9 mg per 100 grams.
These levels mean dairy products won’t meaningfully contribute to your taurine intake. If you’re relying on milk and eggs as your primary animal protein sources, you’re getting far less taurine than someone who regularly eats meat or fish.
Energy Drinks and Supplements
Energy drinks are probably the most widely recognized source of taurine outside of whole foods. An analysis of 49 nonalcoholic energy drinks found the average concentration was about 750 mg per 8-ounce serving, with some brands containing up to 1,000 mg per serving. A standard 8.4-ounce can of Red Bull, for example, contains 1,000 mg.
That single can delivers more taurine than most people get from an entire day of eating meat and fish. However, energy drinks also come with caffeine, sugar, and other stimulants that complicate the picture. Taurine supplements are available in capsule or powder form and offer a more straightforward way to get a controlled dose without the extras.
For adults, a daily intake of up to 1,000 mg from supplements is considered unlikely to cause adverse effects, based on safety assessments by the Norwegian Scientific Committee for Food Safety. Intakes of 2,000 mg per day or more may pose health risks, particularly for adolescents and children.
Plant Foods and Seaweed
Taurine is essentially absent from terrestrial plants. Fruits, vegetables, grains, legumes, nuts, and seeds contain none. This makes it one of the nutrients that’s genuinely difficult to obtain on a fully plant-based diet.
The one exception is seaweed. Nori, the thin sheets used to wrap sushi, contains up to 1,300 mg of taurine per 100 grams. In practice, a single sheet of nori weighs only a few grams, so you’d get about 40 mg from one sheet. That’s a meaningful contribution for someone on a vegan diet, but it’s still far less than what a serving of shellfish or dark meat provides.
What Your Body Makes on Its Own
Taurine isn’t only obtained through food. Your liver and brain can synthesize it from two amino acids: methionine (found in eggs, fish, and grains) and cysteine (found in poultry, yogurt, and broccoli). This conversion requires vitamin B6 as an essential helper, so a B6 deficiency can slow taurine production.
For most healthy adults on a varied diet, internal production fills the gap between what you eat and what your body needs. But this capacity varies. Infants produce very little taurine on their own, which is why human breast milk contains significant amounts. People who eat no animal products have lower circulating taurine levels than omnivores, suggesting that internal synthesis alone doesn’t fully compensate for the dietary absence.
Why Taurine Matters in the Body
Taurine plays several roles that explain why it shows up in such high concentrations in certain tissues, particularly the heart, brain, and eyes. It helps regulate cell volume by managing how much water cells retain, a function that becomes especially important in the brain during dehydration or when blood chemistry shifts. It also participates in forming bile salts, which help you digest and absorb dietary fats, though this function is most active in infants and children rather than adults.
The consequences of severe deficiency are best illustrated in cats, which can barely produce taurine on their own and must get it entirely from food. Cats fed taurine-deficient diets develop retinal degeneration, heart failure, impaired immune function, and reproductive problems. This is why commercial cat food is always fortified with taurine. Dogs and humans have a greater ability to synthesize taurine internally, making outright deficiency rare, but the cat example demonstrates how fundamental taurine is to normal cell function across mammals.
Taurine Intake for Vegetarians and Vegans
Because plant foods provide virtually no taurine, vegetarians and vegans consistently show lower blood and platelet taurine levels than meat eaters. Research has linked sub-optimal taurine status in vegetarians to increased platelet aggregation, meaning blood cells that clump together more readily. Whether this translates to meaningful cardiovascular risk over time isn’t fully settled, but it’s one reason supplementation is worth considering if you avoid all animal products.
A practical approach for plant-based eaters is to include nori or other edible seaweed regularly and consider a taurine supplement in the range of 500 to 1,000 mg daily. Taurine supplements are synthetically produced and don’t involve animal-derived ingredients, making them suitable for vegans. Ensuring adequate B6 intake from foods like chickpeas, potatoes, and bananas also supports whatever internal taurine production your body can manage.