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.
Totals. The total amount of carbohydrates for the day depends upon your age, gender, activity level, weight and the amount of insulin you have to take. People who are more active require more carbs. Those who need to lose weight require fewer. The average amount of daily carbohydrates varies from 130 grams to 200 grams.otals. The total amount of carbohydrates for the day depends upon your age, gender, activity level, weight and the amount of insulin you have to take. People who are more active require more carbs. Those who need to lose weight require fewer. The average amount of daily carbohydrates varies from 130 grams to 200 grams.