First, Americans must follow researchers’ lead and change the way they think about food.
Sometimes how researchers frame a question matters as much as the data they find. Such, it appears, has been the case with the affordability of a healthy diet.
Past studies have looked at cost per calorie. Adults need about 2,000 calories for a healthy diet, so researchers calculated the cheapest way to get them. It turned out that loading up on junk food was a good route.