"Vegetarians are at lower risk for noninsulin-dependent diabetes and have lower rates of hypertension, osteoporosis, kidney stones, gallstones, and diverticular disease than nonvegetarians."
Position of the American Dietetic Association: Vegetarian Diets - technical support paper", Suzanne Havala, R.D. and Johanna Dwyer, D.SC., R.D. Journal of the American Dietetic Association, March, 1988, Volume 88, Number 3, pp. 352-355.