Evidence supporting the use of: Marine lipid
For the body system: Eyes

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Marine lipids, particularly omega-3 polyunsaturated fatty acids such as EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), have significant scientific support for their role in supporting eye health. Numerous clinical studies and reviews have demonstrated that omega-3 fatty acids are critical structural components of the retina and play a vital role in visual development and function. Epidemiological and interventional research suggests that adequate intake of marine-derived omega-3s may reduce the risk of age-related macular degeneration (AMD), a leading cause of vision loss in older adults. For example, the Age-Related Eye Disease Study 2 (AREDS2) investigated supplementation with omega-3 fatty acids and found some supportive evidence for their protective effect, although results were not uniformly conclusive across all endpoints. Additionally, omega-3 supplementation has been shown to improve symptoms of dry eye disease by enhancing tear production and reducing inflammation. The mechanisms by which marine lipids exert these effects include anti-inflammatory actions, modulation of cell membrane fluidity, and protection against oxidative stress. While more research is warranted to clarify optimal dosages and long-term outcomes, the current body of evidence supports the use of marine lipids as a scientifically validated approach to maintaining and supporting eye health, particularly for individuals at risk of specific ocular conditions.

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