It can be surprising to crack open an egg and see a bright orange yolk instead of the expected pale yellow, or vice versa.

The color of an egg yolk, whether it is orange or yellow, is determined mainly by the hen's diet and living conditions. While ...

Unlike yolks, the color of a shell has nothing to do with the nutritional value of the egg, said Steele. And that's no yolk. Christine Rousselle is a lifestyle reporter with Fox News Digital.

There are a lot of possibilities when it comes to egg yolk color. “Egg yolk color can range anywhere from almost white to a blood-red color,” says Richard Blatchford, PhD, a poultry researcher ...

corn [and] alfalfa to 'artificially' boost the yolk color," she said. To ensure the most nutritious eggs possible, Steele suggests customers look for certain labels on cartons at the grocery store.