You can&#x27;t really prescribe one macronutrient ratio for everyone.  Someone who is morbidly obese might do best on a diet almost completely absent in carbohydrates, while someone who is lean will do better on a diet that is relatively high in carbohydrates.  Additionally, activity level makes a big difference in optimal carbohydrate intake.<p>For instance, I&#x27;m _very_ lean and active, and I thrive on a diet that is almost fat free (I get my essential fats from eggs and fish oil).