One cup of sliced zucchini (about 124 g) provides roughly 20 calories and 1.5 g of fiber, per USDA FoodData Central. Zucchini is a low-calorie veg that works as "zoodles" (noodles) or roasted. It adds volume for almost no calories. Sauté or spiralize it; pair with a lean protein and tomato sauce.

Key facts:

  • 1 cup zucchini: ~20 kcal
  • Fiber: ~1.5 g
  • Low-cal noodle swap
  • Zoodles or roasted