One medium tomato (about 123 g) provides roughly 25 calories and vitamin C, per USDA FoodData Central. Tomatoes are low-calorie and versatile — raw in salads, cooked into sauce, or roasted. Cooking concentrates flavor without adding many calories. They’re a base for many vegetable-forward, low-calorie meals.

Key facts:

  • 1 medium tomato: ~25 kcal
  • Vitamin C
  • Low calorie, versatile
  • Raw or cooked