Listening to our ancestors (the 3 pages of comments are pretty entertaining too). This stuff is working and people are starting to notice!
Unfortunately, it hasn't caught on with everyone or with the organizations and agencies that set the diet and exercise guidelines we are told to follow for better health. But as the article says of adherents, "They don't need peer-reviewed studies in published journals or endorsements from the medical or sports establishments to prove the legitimacy of what they're doing. They believe because they see the differences in themselves."
Seeing and feeling is believing - this stuff is REAL! Find out for yourself...