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.
( A; F$ c4 {+ \: XWhite eggs are laid by white-feathered hens.
5 q0 G; E, H2 R7 M) |0 }These are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
9 f) w0 M* W# X5 f; S0 L# tBrown-feathered hens usually lay brown eggs.
8 H2 S9 N4 \8 i; c* G' aProducing brown eggs costs more because brown hens are larger than white ones and they eat more feed.

, `; }  K1 S8 t" YYoung hens lay pee wee eggs and older hens lay jumbo eggs;

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

# p8 o7 {0 a, l. r6 G+ A* @! ^/ ^Organic eggs are nutritionally the same as regular eggs.
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Free-range eggs are nutritionally the same as regular eggs.
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Here is articles:
7 J% r  C  j1 M6 {http://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf

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