The real benefits of free-range eggs are in their nutritional value. Studies show several advantages to farm-fresh eggs, including:
less saturated fat
increased vitamins A, E and D
more omega-3 fatty acids
more beta carotene
The advantage of knowing the history of farm fresh eggs comes into play again in their overall food safety. One of the main things consumers worry about with eggs is the possibility of a salmonella infection. Salmonella occurs in eggs laid by an infected hen, and unfortunately, a hen may not present any symptoms of the disease while still being a carrier.
Scientists agree that the living conditions of caged hens greatly increases their risk of contracting salmonella, making backyard eggs much safer to eat than their store bought counterparts. If you are concerned about salmonella in your home flock, you can also make the decision to have a veterinarian test them and know for certain that the flock is disease-free.