There is a growing number of animals raised holistically and humanely on grass in this country (that never see a bit of grain.) Naturally raised meat is the best source of protein around and is designed for our systems. And GRAZING animals are better for the environment than plowed up crop land. The author should have delved into this aspect more, as he apparently doesn't appreciate the huge groundswelling of humanely raised meat animals. However, this book is obviously a 'feel good' for the vegetarians out there. I wish he'd expose how much of the fruits, vegetables and grains are grown in this country. One would be horrified as to how many farmers basically sterilize the land for their crops. I suggest looking at the site Eatwild.com. I care about what I eat, that's why I eat only pasture raised, grass fed meats such as our bison. All those Indians couldn't have been wrong....Try reading "Traditional Foods are your best Medicine" by R. Schmid