By Robert J. Matthews
Having as many different kinds of fruits and vegetables as you can is another important part of the Mediterranean diet.
You get a wider range of nutrients when you add more color to your plate.
Oats are another easy-to-find, fiber-rich whole grain that can help people on a budget.
Oh, and dried oats last a long time—up to two years if they are stored right.
One of the healthiest foods you can eat is leafy greens.
Usually, 10 ounces of frozen spinach is equal to 1 pound of fresh spinach.
Don't believe it? Corn is a whole grain and one of the best sources of grains in many countries around the world, like Latin American food.
Also, it's one of the cheaper whole grains—each ear costs less than $1 and each frozen 16-ounce bag costs $2.