Foods Low in Calories

Calorie density is the number of calories per gram of food. Low-calorie-density foods like vegetables, fruits, and broth-based soups let you eat larger portions while staying in a deficit. Research from Penn State shows that people who start meals with a low-calorie salad or soup eat 12% fewer total calories at that meal without feeling more hungry afterward.

Volume eating is a practical strategy built around this principle. By filling your plate with low-calorie, high-fiber foods first, you physically crowd out higher-calorie options. This works because your stomach has stretch receptors that signal fullness based on volume, not calories. A pound of spinach has fewer calories than a single tablespoon of olive oil, but only one of them fills your stomach.

Low-calorie foods are not just for dieters. They tend to be the most nutrient-dense options available, packed with vitamins, minerals, and antioxidants relative to their calorie content. Building meals around vegetables, leafy greens, and lean proteins is one of the simplest ways to improve overall diet quality regardless of your weight goal.