Evidence supporting the use of: Vitamin B2 (various)
For the body system: Eyes

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Synopsis

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

Vitamin B2, also known as riboflavin, is scientifically validated for its role in supporting eye health. Riboflavin acts as an essential cofactor in redox reactions and is critical for cellular energy production and antioxidant defense, particularly in tissues with high metabolic activity such as the eyes. Deficiency in riboflavin has been associated with ocular symptoms, including photophobia, excessive tearing, itchy and burning eyes, and more seriously, the development of cataracts. Several observational studies have found a correlation between riboflavin intake and a reduced risk of cataract formation. For example, epidemiological studies have reported that populations with higher dietary riboflavin intake show lower rates of age-related cataracts. Furthermore, riboflavin is involved in the regeneration of glutathione, a key antioxidant in the lens of the eye, which helps protect ocular tissues from oxidative damage. While high-quality randomized controlled trials are limited, the biological plausibility and supportive observational data provide a reasonable scientific basis for the use of vitamin B2 in maintaining eye health and potentially reducing the risk of certain eye disorders. Overall, riboflavin’s support for the eye system is grounded in scientific evidence, particularly regarding its role in preventing deficiency-related ocular issues and possibly in cataract prevention.

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