Using fruits and vegetables is a great way to sweeten and flavor beverages and foods with far fewer calories than refined sugars and fats. These items can be used as extracts or powders, and they can be used for a multitude of different foods and beverages. Fruit flavors are popular for sweet foods and drinks. Strawberry extract can be used to flavor cookies, cakes, drinks, and more. The same can be said for many berries and other fruits.
Vegetables are less common in sweet foods, but many people are now implementing them as a way to get the essential oils the vegetables offer. Carrots, kale, and spinach are becoming more popular in many sweet drinks, as they pair well with fruits that mask their taste in such drinks. You can also use them in savory foods.