When following a low-carb diet, it’s important to choose the right fruits that are low in carbohydrates and won’t cause a spike in blood sugar levels. Here are some of the best fruits you can enjoy while keeping your carb intake in check: Berries Berries such as strawberries, raspberries, and blueberries are excellent options for a low-carb diet. They are packed with antioxidants, fiber, and essential vitamins while being relatively low in carbohydrates.