White or Brown: Eggshell colour is determined by the type of hen that lays it. There is no nutritional difference.5 E& I# k/ X$ G# I+ N0 @& a' h
White eggs are laid by white-feathered hens.3 r( U4 e: O" W+ B: A
These are the most common laying hens in Canada. White eggs are usually less expensive than brown eggs.; K4 [$ `9 z. g; _
Brown-feathered hens usually lay brown eggs. & L" }# z+ m$ V1 P% Q, U! ~+ eProducing brown eggs costs more because brown hens are larger than white ones and they eat more feed., r, T. r- L: F" H
" K9 W3 Y+ n" w9 uFree-run eggs are nutritionally the same as regular eggs.$ N; R1 C G1 y9 S! h
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Organic eggs are nutritionally the same as regular eggs.9 r+ u+ b0 a5 P0 q) @% _5 B/ o
- j) T C9 F% kFree-range eggs are nutritionally the same as regular eggs.6 V5 V' L! @$ _9 S: ]
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Here is articles: & p3 J$ o5 ?; I% ghttp://www.getcracking.ca/EDU/a_guide_to_choosing_eggs.pdf , N# ^! @ S1 ^$ u7 O6 P' V2 w; N- x( M# ?6 s; L