Rabbits, deer, moose, caribou, sheep, goats, African cattle, horses, and zebra consume foods containing less than one percent fat. Wild dogs, wolves, and wild cats have about five percent fat in their diets, because their prey is lean, averaging about three percent body fat. Few animals eat high fat diets. Carnivorous birds occasionally eat high-fat fish. Whales that eat salmon get about 10 to 15 percent fat from that diet.
Bears enjoy a similar diet for a short time in fall, but consume low-fat foods the rest of the year.
Traditionally, humans consumed 15-20 percent of their calories as fats and oils. We must choose between those that heal and those that kill. EFAs are every bit as important to health as protein, vitamins, and minerals. EFAs are so important to health that if we obtain insufficient amounts, our cells deteriorate. Prolonged deficiency leads to progressive degeneration that ultimately results in death.