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.
5 O% W" t% k2 fWhite eggs are laid by white-feathered hens.
7 \3 a" u: s& K5 SThese are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
) P6 ~9 D" V, ?( b0 |. d$ tBrown-feathered hens usually lay brown eggs.
7 G. `5 A; j! w  ~* wProducing brown eggs costs more because brown hens are larger than white ones and they eat more feed.
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0 I4 s. Z# _1 P: N0 z2 NYoung hens lay pee wee eggs and older hens lay jumbo eggs;

: c6 p- ~0 V; [0 S, nFree-run eggs are nutritionally the same as regular eggs.
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Organic eggs are nutritionally the same as regular eggs.

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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