Food is all around people, but much of it isn't healthy. Grocery stores have aisles and aisles of foods packed with sugar, salt and unhealthy fats. Only a fraction of store space is devoted to ...

Knowing how many calories a food contains has become a familiar part of eating. But it may muddy rather than clarify a person’s understanding of how healthy that food is.

Participants who frequently ate nuts, fresh fruit and other high-quality snacks were more likely to have a healthy weight compared with non-snackers or those who chose unhealthy foods.

When study participants considered calorie information, they rated unhealthy food as less unhealthy and healthy food as less healthy. They were also less sure in their judgments. In other words ...