While high-protein diets may be important to weight loss, eating too much protein means you're still loading your body down with calories that it doesn't need. Liz Weinandy, a registered dietitian with the Ohio State Wexner Medical Center tells Eat This, Not That!: "Even though higher protein diets have been shown to help some people lose weight, if you increase your overall calories, no matter where they come from, those extra calories can be turned into body fat. This is especially true if you are getting your protein from high-fat sources like cheese and fatty meats." 

When this happens, you'll want to move away from a high-fat, protein-heavy diet and eat more balanced meals which include lean protein, whole grains, as well as fruits and vegetables, dietitian Kaleigh McMordie tells Reader's Digest.