Your going to get loads of answers on that one. All seed diet is very bad. If you feed seeds it 's hard to get them to eat other things. I feed daily maintenance pellets (at least 50%) Veggies,sprouts ,etc 40% , and fruit 10% . Acouple of nuts, seeds(hemp,milk thristle,safflower) nuts , human food, nutribeeries, are all treats and should be fed sparingly. If you give to much for treats then they don't eat the good stuff. With amazons, too much of anything is bad and variety is best. If your giving them something like "birdie bread" then that would take place of some of the pellets and some of the veggies. The good thing about pellets is they contain all of the trace minerals and Vitamins birds need. its hard to fed a fresh diet that has everything in the right proportions. But a fresh diet of veggies ,greens,sprouts makes a wonderful addition to a pelleted diet.