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.
" T9 X& @# e  z- B/ H7 h& EWhite eggs are laid by white-feathered hens.
5 h/ ]4 |- L0 ^! RThese are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.
1 Q$ D" B5 b  N" aBrown-feathered hens usually lay brown eggs.
Producing brown eggs costs more because brown hens are larger than white ones and they eat more feed.

9 O- t" ^, @& gYoung hens lay pee wee eggs and older hens lay jumbo eggs;

% X9 x0 H* T0 S6 B$ g8 XFree-run eggs are nutritionally the same as regular eggs.

7 q; H: o8 `. l/ D5 h: }! y% f4 JOrganic eggs are nutritionally the same as regular eggs.

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


Here is articles:
2 h& a' ?( e2 C7 X( u" g, p* Bhttp://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf
4 q9 k, |' Y5 K& D+ i