Fruit, vegetable intake, and kidney cancer:
Eating fruits and vegetables was linked with a reduced risk of kidney cancer (RCC, renal cell carcinoma) in men (n=116), but not women (n=132). Men who consumed at least 6 servings of fruits and vegetables per day had a 55% reduced risk of RCC compared to men who had less than 3 servings per day. Vitamins A, C, and carotenoids from food were found to be inversely associated with RCC in men. Vitamin E had no clear link to RCC in either men or women. (6)
Vegetarian diet, fiber intake and diverticular disease:
A comparison of the effects of diet on diverticular disease, a medical condition where pouches (diverticula) form in the colon wall, found that a lower fiber intake is associated with the presence of diverticular disease. Results show that among vegetarians with a reported average fiber intake of 41.5 g/day the rate of diverticular disease is 12%. In contrast, non-vegetarians had an average fiber intake of 21.4 g/day and diverticular disease was found in 33%. (7)