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 recommended intake is a minimum of 130 grams/day, or 45 - 65 percent of daily calories for adults, independent of age or activity level. This is the minimum needed for your brain to function. Athletes are recommended to consume 6 - 10 grams for every kilogram of body weight per day.For example, a typical man weighing 70 kilograms needs 420 grams of carbs per day to fuel his activity.If you are on a low-calorie diet (less than 2000 calories per day), it may be difficult to achieve the 6 grams per day.ince there are four calories per one gram of carbohydrate, you would need to be consuming 250-300 grams of carbohydrates per day. The digestibility of the carbohydrates you consume (fiber content) plays a role in the physiological energy available.