White eggs are not bleached to appear white. The color of the egg can be traced back to the color of the hen that laid it. A white hen typically lays white eggs, though this is not always the case.
Depending on the species of hen, brown hens can also lay white eggs. However, the color of white eggs produced by brown hens tends to be slightly darker than the color of a normal white egg. There is no nutritional or flavor difference between white eggs and brown eggs. Both eggs contain roughly equal amounts of fat, protein, B vitamins, calories and cholesterol.