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Top 10 Healthy and Cheap Foods

Canned Tomatoes

Studies show that cooking certain foods makes it easier for the body to absorb nutrients. Tomatoes are one of these foods. Cooked tomatoes allow the body to absorb more lycopene, a powerful antioxidant. You'll also get a nice dose of vitamins A and C.

Whether stewed, crushed or pureed -- canned tomatoes are a cost-effective meal starter. You can buy a can of tomatoes at your grocery store for around a dollar, and often for less if you buy generic or on sale. A 14.5 ounce can provides about 3.5 servings -- a cost of about 28 cents per serving.

Even better, if you combine lycopene with a small amount of fat -- say, olive oil -- absorption is even better. So go ahead and have Italian tonight. Don't forget the whole-wheat pasta.