Synopsis

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

Algal oil is used to support eye health primarily due to its high content of the omega-3 fatty acid docosahexaenoic acid (DHA). DHA is a major structural component of the retina, and adequate levels are essential for normal visual development and function. Several clinical studies have demonstrated that omega-3 supplementation, especially DHA, may help maintain retinal health and protect against age-related macular degeneration (AMD) and dry eye syndrome. Algal oil serves as a plant-based, sustainable alternative to fish oil, providing a direct source of DHA without the risk of ocean contaminants.

Scientific evidence supports the use of algal-derived DHA for eye health. For example, randomized controlled trials (RCTs) and systematic reviews have reported that DHA supplementation can improve tear production and reduce symptoms of dry eye. While some meta-analyses have found mixed results regarding omega-3s and AMD progression, the overall consensus is that adequate omega-3 intake, including from algal oil, is beneficial for maintaining long-term retinal function and structure. Thus, the use of algal oil for eye health is scientifically validated, though not all claims are equally strong and further research is ongoing.

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Products containing algal oil

Metagenics OmegaGenics Algae EPA-DHA 300 mg