The widespread popularity of high-protein diets is due in large part to their ability to help manage hunger. Whenproteinisabsorbed,itsendsasignaltothebraintodecreaseyourhunger.Anotherbenefitofprotein isthatitraisesyourrestingmetabolismbymaintainingmusclemass.Asweage,musclemassdecreases without exercise, so staying fit is a key to burning fat by keeping your metabolism high. Protein also leads to a much less rapid rise and fall of blood sugar and insulin, so you avoid the “sugar highs and lows” after eating sweets without adequate protein. Certain foods, however, provide a healthier resource for protein than others.