The color of the yolk has [..] to do with [...] if they eat beta carotene. Lutein. http://www.google.com/search?q=egg+yolk+color+lutein http://www.google.com/s

The color of the yolk has [..] to do with [...] if they eat beta carotene. Lutein. http://www.google.com/search?q=egg+yolk+color+lutein http://www.google.com/search?q=egg+yolk+color+lutein