Are Healthy Foods Really More Expensive? It Depends on How You Measure the Price
by Andrea Carlson and Elizabeth Frazao, United States Department of Agriculture Economic Research Service, May 2012.
Looking at different metrics to determine the real price of 4,439 different food items to see if healthy foods are actually more expensive. Findings include that in fact foods low in calories such as fruits and vegetables are more expensive when measured per calorie. However, when 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, added sugars, and/or sodium.
Source: USDA Economic Research Service