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.
- @7 g1 {) e, dThese are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
( J6 E( M, I+ r* y# e: B# ^+ g2 VBrown-feathered hens usually lay brown eggs.
1 h. X0 O; o8 `0 ^& VProducing brown eggs costs more because brown hens are larger than white ones and they eat more feed.

Young hens lay pee wee eggs and older hens lay jumbo eggs;

, N0 Y  |  Y5 L* k6 b5 zFree-run eggs are nutritionally the same as regular eggs.
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Organic eggs are nutritionally the same as regular eggs.
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1 Y5 ]: I- ~9 x% [- n  ^& v( HFree-range eggs are nutritionally the same as regular eggs.
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/ Q2 y, X0 f) C$ p/ }2 |Here is articles:
http://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf
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