well while we were grocery shopping i was looking for some shrimp and such for my rtc, well what i found was salad shrimp,18g protein,vit a, vit c, calcium and iron, 4 oz for only .99 cents, than here is the big one. scallops, protein 36g, cholesterol, sodium, carbs vit a, vit c, calcium and iron, 4 oz for only .99 cents. well the cat loves them and what i do is feed one shrimp and about a 1/3 of a scallop about 2-3 times a day. i also asked the butcher about beef heart and he has ordered me some, at only like 60 cents a pound i will be able to make out really good on feeding.