Rising food prices might be contributing to the American obesity epidemic. The price many grocery items are climbing, and for many families trying to eat healthily, that's a recipe for disaster.

Families, hospitals, and school cafeterias are struggling to create nutritious meals without overwhelming their budgets. Fruits, vegetables, low-fat dairy and whole grains are all skyrocketing in price.

In Florida, schools in Broward County recently started using white buns instead of wheat, a move that will save the district $200,000 a year but cost in terms of nutrition. Other school districts are swapping out fresh produce for frozen or canned food.