What egg yolk color can reveal about the chicken it came from ?



We want to allow you a little secret: Not all yolks are created equal. In fact, their color reveals a lot more about what you eat than you were thinking .


The color of the egg yolk depends on the grains the chicken feeds on, according to Shribili. Additionally, it can reveal clues to the chicken's diet - both the type of food they eat as well as the variety. We can thank a pigment found in plants called xanthophylls for the contrast in the yolk color.


If you were shopping in an American supermarket, you would likely purchase eggs with bright orange yolks. That's because most American farmers feed their chickens with foods that contain xantophyll and lutein extracts. A diet rich in amaranth leaves, yellow corn, and green fodder such as alfalfa, orange peels, moss, carrots, and annatto seeds creates an orange-yolk color.



On the other hand, a light yellow - almost white - means the chicken was fed sorghum, which is a grain that has less pigmentation than yellow corn or carrots. If you live in the good old United States, you are unlikely to come across pale yellows. (They are actually more common in Africa!)


As for the yolk, which is a reddish color or orange-red ? This color comes from a xanthophyll extract called zeaxanthin, which is found in red or dark green plants such as peppers, kale, spinach, and broccoli. These dark yolks tend to be richer in nutrients like omega-3s, carotenoids, and lean, according to the Broad Ripples Farmers Market.


Still, you can eat Yolux of any color worry free.  The color of the eggs simply indicates the type of nutrients you are consuming, not the number of the nutrients in them.


Regardless of their color, though, you should treat all eggs the same. The Food and Drug Administration recommends storing it in the refrigerator at a temperature of at least 40 degrees Fahrenheit. (Incidentally, this is why Americans do not cool eggs, and Europeans don't.)