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.
7 W& v9 K0 y% mWhite eggs are laid by white-feathered hens.
3 x/ N* f$ J% v+ ~6 l# `( c7 ]These are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
4 W5 w2 ]4 D  I# \! vBrown-feathered hens usually lay brown eggs.
* K! M$ z% c) S2 [Producing brown eggs costs more because brown hens are larger than white ones and they eat more feed.
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) y. a. |4 I  f9 j- x" a, vYoung hens lay pee wee eggs and older hens lay jumbo eggs;

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

) }) i' M/ E- q8 r2 a! p% rFree-range eggs are nutritionally the same as regular eggs.
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+ V& l6 T8 g3 T) j7 g9 x* cHere is articles:
http://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf
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