I recently made a brief post about the benefits of chickens in the garden. In that post I just listed some of the benefits that having chickens can have on the productivity of the garden.
results from that study supported the results of many other studies--free range, or pasture raised, eggs are better for you.
For readers who doubt the accuracy of that study, a 2010 peer-reviewed and published study out of Penn State, titled 'Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens', described the following results:
"Compared to eggs of the caged hens, pastured hens' eggs had twice as
much vitamin E and long-chain omega-3 fats, 2.5-fold more total omega-3
fatty acids, and less than half the ratio of omega-6:omega-3 fatty acids
(P<0.0001). Vitamin A concentration was 38% higher (P<0.05) in the pastured hens' eggs than in the caged hens' eggs..."
Not surprisingly, having access to a healthy environment makes for healthy eggs.