Swiss chard, a leafy green like spinach, is a beet. Add some chopped chard to your next salad, soup, or stir fry—it only has 35 calories per cup.
Chili peppers, which are hotter and less sweet, have even fewer calories. Jalapenos have 13 calories per half-cup, whereas serrano peppers have 14.
Cucumbers replace tortilla chips, crackers, and other items in dishes because a cup has 16 calories. It provides vitamins K, C, and B, so slice some for your next salad or dip.
Fennel, a carrot, tastes like anise or black licorice yet looks like an onion. Sliced fennel offers only 27 calories per cup! Sample roasted fennel with olive oil and parmesan.
Some follow the century-old "grapefruit diet"—a low-sugar, low-carb, low-calorie, high-protein diet. Grapefruit half-fruits offer 37 calories, vitamins, minerals, antioxidants, and fiber.
one cup of chopped kale has 33 calories. Kale, a superfood, provides more than 100% of your daily vitamin K, A, and C, manganese, and antioxidants.
A cup of lettuce—iceberg, bibb, red leaf, romaine, etc.—has fewer than 10 calories. They're primarily water, thus lettuce is hydrating and low in calories.
Radishes, a root vegetable, may keep you healthy and beautiful. One cup has 18 calories and several vitamins, minerals, and antioxidants.