Problem Getting Enough Calories? If you aren't eating enough, add treats throughout the day to help you get more nutrients and calories. Snacks can be healthy-- for instance, raw vegetables with a low-fat dip or hummus, low-fat cheese and whole-grain crackers, or a piece of fruit. Unsalted nuts or nut butters are nutrient-dense snacks that give you included protein. You might try putting shredded low-fat cheese on your soup or popcorn or scattering nuts or #delicioushealthyfoods