5. Leafy Greens

Leafy greens like spinach, kale, and Swiss chard are low in calories but high in nutrients, including fiber and vitamins. The phytochemicals in leafy greens have been shown to help control your appetite, support digestion, and provide essential nutrients for muscle recovery.
Best says, “Vegetables like spinach, kale, and Swiss chard are low in calories and packed with fiber, vitamins, and minerals that support overall health and digestion.”
6. Berries

Blueberries, strawberries, and raspberries are more than nature’s candy — they’re also low in calories and high in antioxidants. This makes berries a superb choice for satisfying your sweet tooth while staying on track with your ab goals.
“Berries can help sculpt defined abs and aid in recovery from exercise due to their high antioxidant and low calorie content,” says Best.