Our expert says:
In contrast to energy, protein, vitamins and minerals, no RDA or SDI is prescribed for fat or carbs in SA or elsewhere. Instead it is recommended that a certain percentage of the daily energy intake should be derived from each of these so-called macronutrients. If you are an adult woman and require 8400 kJ of energy per day, then to meet the requirements for a prudent diet, your fat intake should contribute 30% of your energy intake, which works out to 68 g of fat a day. Most people tend to eat much more than 30% of their energy intake in terms of fat. In regard to carbs, a reasonable percentage of energy intake of about 60% should come from carbs, which translates into 315 g of carbs a day. So the recommended amounts of carbs and fats depend on the energy intake of the individual and the percentage of this energy that is allocated to these 2 macronutrients.
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