White or Brown eggs---There is no nutritional difference.

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White or Brown: Eggshell colour is determined by the type of hen that lays it. There is no nutritional difference.
White eggs are laid by white-feathered hens.
( U! o1 m0 A' w) qThese are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
Brown-feathered hens usually lay brown eggs.
Producing brown eggs costs more because brown hens are larger than white ones and they eat more feed.
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Young hens lay pee wee eggs and older hens lay jumbo eggs;
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Free-run eggs are nutritionally the same as regular eggs.
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% b' U: y, r* q$ f& i$ iOrganic eggs are nutritionally the same as regular eggs.

Free-range eggs are nutritionally the same as regular eggs.

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Here is articles:
/ l( h/ T5 y$ T) o' Whttp://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf