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The Egg Safety Center represents commercial egg producers, which follow the FDA Egg Safety Rule and state/federal regulatory programs.
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Why are some egg yolks darker yellow?
Hens that are fed wheat and barley produce eggs with lighter color yolks. Hens fed green plants, corn and alfalfa produce eggs with darker color yolks. The yolk color does not indicate hen health or egg nutrition. The yolk color also has no relationship to egg quality, flavor, cooking characteristics or shell thickness.