Egg Yolk Color Demystified

"Egg yolk color depends on the hen's feed," said Pauline Chan, a dietitian and the managing director of The Nutrition Place, Singapore. "A diet of wheat and white corn meal would produce an almost colorless yolk. If the hen is fed a diet that includes yellow corn meal, marigolds or carotene, the egg yolk would have a deep yellow color."

Brown eggs are produced by hens with red ear lobes and feathers while white eggs are produced by hens with white ear lobes and feathers. There is no significant link between shell color and the nutritional value of an egg.

June Liew, a dietitian at the department of dietetics and nutrition services at Singapore General Hospital added that some people claim that eggs promote soft and healthy hair by nourishing the hair follicles with essential proteins, sulphur content and its wide array of vitamins and minerals. For these reasons, eggs are used to make shampoos and conditioners despite the fact that more studies are needed to prove the efficacy of eggs on skin and hair health.