讀 The color of the egg yolk tells the hens story Pale yellow Caged hens, industrially fed = fewer nutrients. Orange yellow Bar-raised hens, fed on plants and insects = richer, tastier eggs. Bright orange Free-range hens, natural diet = source of omega-3s and vitamins the true gold standard. The hue of the yolk reflects the hens health: the more orange it is, the more nutritious and vibrant the egg.