Nutrition
Egg Yolk Micronutrients
Egg yolk micronutrients pack choline, B12, selenium, and lutein—discarding yolks saves calories but requires deliberate nutrient replacement elsewhere.
Egg yolk micronutrients concentrate choline, vitamin B12, riboflavin, folate, vitamins A and D, selenium, iodine, and carotenoids lutein and zeaxanthin in a small fat package. Discarding yolks to save calories removes most of an egg's brain, eye, and thyroid-support nutrients unless replaced from liver, fish, dairy, or supplements.
Enriched feed can raise omega-3 and vitamin D in yolks.
Common questions
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Is the yolk the unhealthy part of the egg?
The yolk carries most micronutrients and fats—not just cholesterol. For many people it fits a healthy diet; medical lipid disorders are the main reason to limit yolks under supervision.
Related terms
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