On the left is the yolk of an egg produced by a free-range organic chicken, on the right is just the opposite – a store-bought, mass produced egg. Notice the difference in color. This is a common difference that will instantly give away ‘store bought’ eggs in the presence of natural, free-range organic eggs. The egg yolk’s color has implications regarding the nutrition and health of the chicken that produced it. A darker yolk is an indication of a nutritious and balanced diet rich in xanthophyll, omega-3 fatty acids and meats. Simply put, it takes quite a bit of time and energy to feed free-range chickens that produce eggs with a darker yolk.