The Rambam was a rabbi and physician living in the 12th century. He wrote several books on health, nutrition and proper daily living.

http://en.wikipedia.org/wiki/Maimonides#Medical_works
http://www.jewishhealing.com/diet-rambam.html
http://www.jewishhealing.com/rambamchap4.html
http://rambamtv.com/blog/item/rambam...path-to-health

Other than Maimonides the Jews aren't known to be a physically healthy race :P