Evidence supporting the use of: Tea (not specified)
For the body system: Eyes

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Tea, particularly green and black tea, has traditionally been associated with supporting eye health in various cultures, especially in East Asia. Historical uses include applying cooled tea bags to the eyes to reduce puffiness and soothe irritation, as well as drinking tea to promote general well-being, which was often believed to include benefits for vision. The traditional rationale is based on the presence of antioxidants, notably catechins in green tea, which are thought to help combat oxidative stress—a factor implicated in age-related eye conditions such as macular degeneration and cataracts. However, while there are in vitro and animal studies suggesting that tea polyphenols may protect retinal cells from oxidative damage, robust clinical trials in humans directly linking tea consumption to improved eye health are limited. Most claims remain unproven or are extrapolated from tea’s general antioxidant effects. Thus, while tea is used traditionally to support the eyes, and there is some plausible scientific basis for its antioxidant properties providing indirect benefit, there is insufficient direct clinical evidence to strongly support its use for this specific body system.

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