Keeping blood sugar under tight control is vital to total body health. Most recently, esearchers from the National Cancer Institute discovered that eating fruit may prevent colorectal polyps, something that may occur as the result of frequent high blood glucose levels.

A study of 32,000 people led to the discovery that men who ate five servings of fruit a day were 38 percent less likely to develop polyps than men who did not eat as many servings.

Researchers posit that the prevention of these growths -- which often precede cancer -- is caused by pectin found in fruits, which can help regulate blood glucose levels. It's possible that frequently running high blood sugars may promote the growth of the cancerous cells.