13 of the Best Fat-Burning Foods You Can Eat to Tone Up and Feel Great

Berries really hit every criteria: they're low in sugar and high in fiber, antioxidants, vitamins, and minerals. According to Kristin, fiber-rich diets have been associated with increased weight loss, decreased cholesterol, and improved digestion. Additionally, blueberries contain a flavanoid called anthocyanin, which is linked to lower risk of type 2 diabetes. "Add berries to smoothies and oatmeals to get a boost of fiber, nutrients, and flavor," Kristin said. "Blueberries are my go-to, since they work easily as a topping or a standalone snack."