Duck eggs contain higher protein, omega 3 fatty acids, vitamin A, and amino acids than chicken eggs and not merely because they are bigger. They are rich in zinc, magnesium, selenium, vitamin D, choline and all the B vitamins! Duck eggs help maintain an alkaline diet and because the protein in duck eggs is different than in chicken eggs those with egg allergies may be able to eat duck eggs. Our powdered raw duck eggs are simply processed with NO additives....they are washed, cracked, scrambled, frozen and freeze dried. That's it. Our packaging enables them to last for up to 25 years if left unopened.