For many, dairy just spells upset stomach — not always the case when it comes to a serving of plain yogurt. The key is to make sure you're choosing a yogurt that is labeled as having "active cultures." These cultures will increase the number of good bacteria in the gut, aiding in digestion and reducing the uncomfortable feeling of being bloated. Ideally, choose organic plain yogurt that is free of fruit and added sugar. If plain yogurt just sounds unappealing, add fresh blueberries to your bowl. Besides the satisfying taste, blueberries have been shown to target belly fat.