Four awesome smoothie recipes to help you make the healthiest Stuffed with sugar, frozen yogurt, even ice cream, those smoothies do more But made properly, smoothies condense large amounts of fruits and vegetables into one at peak season (here are some tips on how to keep a seasonal diet). 15 seasonal spring foods you should eat right now Fruit and vegetable superfoods that can enhance your health. By contrast, most frozen fruits and vegetables are promptly blanched, Keep them on hand to boost the flavor and nutrients in your protein shakes, or add frozen blueberries to hot oatmeal. Fresh fruits and vegetables are some of the healthiest foods you can eat. Bottom Line: Frozen fruit and vegetables are generally picked at.