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.
8 M" J  k: H2 \( _# h" fThese are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
/ A1 {! v" `$ R6 u  r7 ?/ g0 ~  lBrown-feathered hens usually lay brown eggs.
, p8 f9 Q, I- [+ c# ^6 P" _Producing brown eggs costs more because brown hens are larger than white ones and they eat more feed.

: X# a4 _- ?# K9 H1 G1 k% EYoung hens lay pee wee eggs and older hens lay jumbo eggs;
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% T, V) M: v& QFree-run eggs are nutritionally the same as regular eggs.

$ p9 o8 b. J: ?, mOrganic eggs are nutritionally the same as regular eggs.
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Free-range eggs are nutritionally the same as regular eggs.


Here is articles:
http://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf

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