What are the concerns of opponents of paleolithic diet?

Answer:
They argue that diseases such as cancer, heart disease, and arthritis are found less frequently in hunter-gatherer societies because few members of those societies survive to an age at which those conditions become problems.
First answer by Gale Ency. of Alt Med. Last edit by Gale Ency. of Alt Med. Contributor trust: 16 [recommend contributor recommended]. Question popularity: 1 [recommend question].