Health Science Has Really Not Given Us Much Recently

"Obviously we have learned a great deal in the last 60 years, but it is perhaps surprising how little basic nutritional advice has changed. By the 1950s we had already worked out the basics of nutrition, identified all the vitamins, their role in the body, and their source in common foods. The benefits of exercise were also already being recognized, as well as maintaining a lean body mass. Everything we have learned since then, in terms of its bottom line effect on health advice, has been a small tweak, not a fundamental change."

http://theness.com/neurologicablog/index.php/health-advice-from-the-1950s/