Egg yolks are an excellent source of lutein. Lutein helps prevent macular degeneration and cataracts. Our bodies cannot make lutein so it is important to get it from our diet.
Current research shows a beneficial effect of eggs on eye health without a detrimental effect to cholesterol and lipid levels.
Choose eggs that are enriched with omega-3 fatty acids and consume the yolk.
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Wenzel, AJ, Gerweck C, Barbato D, et al. A 12-wk egg intervention increases serum zeaxanthin and macular pigment optical density in women. J Nutr 2006; 136: 2568-2573.
Goodrow EF, Wison TA, Houde SC, et al. Consumption of one egg per day increases serum lutein and zeaxanthin concentrations in older adults without altering serum lipid and lipoprotein cholesterol concentrations. J Nutr 2006; 136: 2519-2524.