 | | 5 / 9 5. Whole grains
Whole grains contain B vitamins and iron which help keep your gums healthy, too. According to a Canadian study of 34,000 men, those who ate three daily servings of whole grains -- think brown or wild rice, barley, oatmeal and whole-wheat bread -- were 23 percent less likely to suffer from periodontitis, a severe form of gum disease.
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