ANCHORAGE - Cooking a healthy and high-energy family meal can be expensive.

“It's harder to eat healthy, especially if you want to put lots of raw fruits and veggies in your diet - especially in Alaska it's really hard,” said mom Julie Blom, while shopping for dinner with her daughter.

But a new report from the U.S. Department of Agriculture says we might have to reassess how we calculate the costs.

The authors of the report say healthy foods cost less than fatty foods, when the cost is calculated using the serving size.

"Instead of price per calorie, if you look at price per amount of food eaten or portion sizes then healthy foods are cheaper,” said Diane Peck, a registered dietitian with Alaska’s Department of Health.

According to the report, when food is measured on the basis of edible weight or average portion size, grains, vegetables, fruit, and dairy foods are less expensive than most protein foods and foods high in saturated fat.