Tomatoes
A medium tomato (2.5" diameter) has only about 25 calories. These garden delights are low in fat and sodium, high in potassium and rich in fiber.
A survey at Harvard Medical School found that the chances of dying of cancer are lowest among people who eat tomatoes (or strawberries) every week.
And don't overlook canned crushed, peeled, whole or stewed tomatoes. They make sauces, casseroles and soups taste great while retaining their nutritional goodness and low-calorie status. Even plain old spaghetti sauce is a fat-burning bargain when served over pasta, so think about introducing tomatoes into your diet