Although the central concept of marginalism is that of marginal utility, marginalists, following the lead of Alfred Marshall, drew upon the idea of marginal physical productivity in explanation of cost.
The Dietary Guidelines for Americans recommends that carbohydrates make up 45 to 65 percent of your total daily calories. So, if you get 2,000 calories a day, between 900 and 1,300 calories should be from carbohydrates.That translates to between 225 and 325 grams of carbohydrates a day.You can find the carbohydrate content of packaged foods on the Nutrition Facts label.o, if you get 2,000 calories a day, between 900 and 1,300 calories should be from carbohydrates. That translates to between 225 and 325 grams of carbohydrates a day. You can find the carbohydrate content of packaged foods on the Nutrition Facts label.
The Institute of Medicine suggests Americans get 45-65% of calories coming from carbohydrate. American adults on average consume around 52% of calories from carbohydrate. This translates to about 260 gm of carbohydrates per day for someone eating 2,000 calorie diet: double the minimum carbohydrate requirement. At this average level, you could technically cut out up to half the carbohydrates and still be at the minimum requirement.