Tomatoes contain important nutrients, such as niacin, folate and vitamin B6, that have associated with the reduction of heart disease risk. One study found that women who ate 7 to 10 servings of tomato products per week had a 29 percent lower risk of cardiovascular disease than women who consumed less than a serving and a half of tomato products each week. Results were even more impressive when the women ate oil-rich tomato products.