Age-related macular degeneration is the leading cause of blindness in Americans over 65. Impaired vision precedes blindness. A recent study linked consumption of omega-3 fatty acids with 30% lower risk of developing macular degeneration. Believe me, it’s a lot better to prevent it than try to treat it once present.
[I have a couple older relatives with macular degeneration, so I pay close attention to the scientific literature.]
What’s the best sources of omega-3 fatty acids? Our friend, the fish. Especially cold-water fatty fish such as tuna, trout, sardines, herring, mackerel, halibut, and sea bass. A few plants are also decent sources, but our bodies don’t utilize those omega-3 fatty acids as well as they do from fish.
Note that the Ketogenic Mediterranean Diet has a prominent role for fish.
Reference: SanGiovanni, J.P., et al. Long-chain polyunsaturated fatty acid intake and 12-y incidence of neovascular age-related macular degeneration and central geographic atrophy: AREDS report 30, a prospective cohort study from the Age-Related Eye Disease Study. American Journal of Clinical Nutrition, 90 (2009): 1,601-1,607. First published October 7, 2009. doi:10.3945/ajcn.2009.27594