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

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Synopsis

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

Broccoli is scientifically recognized for supporting eye health due to its rich content of nutrients such as lutein, zeaxanthin, and vitamin A precursors (notably beta-carotene). Lutein and zeaxanthin are carotenoids found in the retina and lens of the eye, where they help filter harmful high-energy blue wavelengths of light and act as antioxidants to protect the eyes from oxidative stress. Several observational studies suggest that higher dietary intake of these carotenoids is associated with a reduced risk of age-related macular degeneration (AMD) and cataracts. Broccoli also contains vitamin C, another antioxidant that may help delay the onset of cataracts and other age-related eye diseases by combating oxidative damage to the eye tissues.

While most of the clinical evidence comes from studies on overall dietary intake of these nutrients rather than specific trials on broccoli itself, broccoli is considered a valuable source of these compounds. Thus, its inclusion in a diet aimed at supporting eye health is scientifically justified, though direct evidence from interventional studies focusing exclusively on broccoli is limited. The overall rating of 3 reflects moderate, but not definitive, scientific support for broccoli’s role in supporting the eyes body system.

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