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What is it? Overview Usage Side Effects and Warnings

Taurine Overview

Written by FoundHealth.

Taurine is an amino acid, one of the building blocks of proteins. Found in the nervous system and muscles, taurine is one of the most abundant amino acids in the body. It is thought to help regulate heartbeat, maintain cell membranes, and affect the release of neurotransmitters (chemicals that carry signals between nerve cells) in the brain.


There is no dietary requirement for taurine, since the body can make it out of vitamin B 6 and the amino acids methionine and cysteine. Deficiencies occasionally occur in vegetarians, whose diets may not provide the building blocks for making taurine.

People with diabetes have lower-than-average blood levels of taurine, but whether this means they should take extra taurine is unclear.

Meat, poultry, eggs, dairy products, and fish are good sources of taurine. Legumes and nuts don't contain taurine, but they do contain methionine and cysteine.

Therapeutic Dosages

A typical therapeutic dosage of taurine is 2 g 3 times daily.

What Is the Scientific Evidence for Taurine?

Congestive Heart Failure

Several studies (primarily by one research group) suggest that taurine may be useful for congestive heart failure . For example, in one double-blind, placebo-controlled trial , 58 people with CHF took either placebo or 2 g of taurine 3 times daily for 4 weeks. 1 Then the groups were switched. During taurine treatment, the study participants showed highly significant improvement in breathlessness, heart palpitations, fluid buildup, and heart x-ray, as well as standard scales of heart failure severity. Animal research as well as small blinded or open studies in humans have also found positive effects. 2 3 4 5 Interestingly, one very small study compared taurine with another supplement commonly used for congestive heart failure, coenzyme Q 10 . The results suggest that taurine is more effective. 6

Viral Hepatitis

There are several viruses that can cause acute viral hepatitis , a disabling and sometimes dangerous infection of the liver. The most common are hepatitis A and B, although there are others (with such imaginative names as C and D).

One double-blind study suggests that taurine supplements might be useful for acute viral hepatitis. In this double-blind, placebo-controlled study, 63 people with hepatitis were given either 12 g of taurine daily or placebo. 7 (The report does not state what type of viral hepatitis they had.) According to blood tests, the taurine group experienced significant improvements in liver function as compared to the placebo group.

Acute hepatitis can also develop into a long-lasting or permanent condition known as chronic hepatitis. One small double-blind study suggests that taurine does not help chronic hepatitis. 8 For this purpose, the herb milk thistle may be better.


  1. Azuma J, Sawamura A, Awata N, et al. Double-blind randomized crossover trial of taurine in congestive heart failure. Curr Ther Res. 1983;34:543-557.
  2. Azuma J, Sawamura A, Awata N, Ohta H, Hamaguchi T, Harada H, Takihara K, Hasegawa H, Yamagami T, Ishiyama T. Therapeutic effect of taurine in congestive heart failure: a double-blind crossover trial. Clin Cardiol. 8(5):276-82.
  3. Azuma J, Takihara K, Awata N, Sawamura A, Ohta H, Hamaguchi T, Tanaka Y, Fukuda K, Kishimoto S. Taurine and failing heart: experimental and clinical aspects. Prog Clin Biol Res. 179():195-213.
  4. Azuma J, Hasegawa H, Sawamura A, Awata N, Ogura K, Harada H, Yamamura Y, Kishimoto S. Therapy of congestive heart failure with orally administered taurine. Clin Ther. 5(4):398-408.
  5. Takihara K, Azuma J, Awata N, Ohta H, Hamaguchi T, Sawamura A, Tanaka Y, Kishimoto S, Sperelakis N. Beneficial effect of taurine in rabbits with chronic congestive heart failure. Am Heart J. 112(6):1278-84.
  6. Azuma J, Sawamura A, Awata N. Usefulness of taurine in chronic congestive heart failure and its prospective application. Jpn Circ J. 56(1):95-9.
  7. Matsuyama Y, Morita T, Higuchi M, Tsujii T. The effect of taurine administration on patients with acute hepatitis. Prog Clin Biol Res. 125():461-8.
  8. Podda M, Ghezzi C, Battezzati PM, Crosignani A, Zuin M, Roda A. Effects of ursodeoxycholic acid and taurine on serum liver enzymes and bile acids in chronic hepatitis. Gastroenterology. 98(4):1044-50.


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