It is true that "an egg is an egg" insofar as shell color is concerned (although no self-respecting New Englander would even
look at a
white egg (
yuck!
However, there
can be as much as a 50% difference in vitamins, protein, and fat content based on what the chicken was fed. Huge chicken "factories" that feed "egg-laying" pellets tend to produce eggs that are lower in vitamins & protein and higher in fat, and the yolks are almost always a sickening light yellow color (If you've only eaten store-bought eggs, you probably didn't realize that yolks are NOT suposed to be yellow..)
Small farm/homestead raised chickens that have access to natural grasses, bugs, and scratch feeds (chickens are actually "woodland" birds) tend to have higher protein in the whites, lower fat in the yolks, and the yolks are ORANGE.
Again, this is NOT a brown egg/white egg difference, it is a mass-produced/home-hatched difference.
And don't anyone dare say anything different, because I raise organic chicken eggs.... and I know where you live....