Evidence supporting the use of: Taurine
For the body system: Eyes

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Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Taurine, a sulfur-containing amino acid, is present in high concentrations in the retina and plays a crucial role in eye health. Scientific studies, mainly in animal models, have shown that taurine is vital for the maintenance and function of retinal cells. Taurine deficiency in animals leads to retinal degeneration and loss of visual function, suggesting its necessity for normal vision. Mechanistically, taurine is thought to act as an antioxidant, osmoregulator, and modulator of calcium signaling within retinal cells, all of which are important for protecting photoreceptors and other retinal neurons from damage. In humans, taurine is present in the retina, and lower levels have been associated with retinal disorders, though direct causative relationships are less well established than in animal models.

Human clinical data supporting taurine supplementation for eye health are limited and inconclusive. Some preliminary studies suggest potential benefits in slowing the progression of certain retinal diseases, but robust, large-scale clinical trials are lacking. As a result, while there is strong biological plausibility and experimental support from animal research, direct evidence in humans remains moderate. Taurine is sometimes included in eye health supplements based on this mechanistic and preclinical evidence.

In summary, taurine's use for eye support is justified by a scientific rationale, particularly from animal studies, but human evidence is not yet definitive, warranting a moderate evidence rating.

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