Diet Determines Color
Research shows that yolk color is directly linked to the hen's feed. A diet high in wheat produces pale yellow yolks, while a more varied diet including corn and alfalfa yields darker orange yolks. This is due to carotenoids, natural pigments found in plants. The yolk's color does not reflect the hen's health, living conditions, or the egg's quality—it's simply a sign of what the chicken ate.
Nutritional Impact
Regardless of color, all egg yolks contain essential vitamins A, D, E, and K, and taste the same. Even the hen's housing (free-range vs. caged) doesn't affect the yolk's nutritional value. So whether you prefer organic or conventional eggs, the yolk color is just a visual clue about the hen's diet, not a measure of healthiness.
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