The IOM calculated an acceptable macronutrient distribution range for carbohydrate (45%-65% of energy), protein (10%-35% of energy), and fat (20%-35% of energy; limit saturated and trans fats).

Why is macronutrient distribution range acceptable?

Acceptable macronutrient distribution ranges (AMDRs) for carbohydrate, fat, and protein have been set by considering epidemiological evidences that suggest consumption within these ranges plays a role in reducing risk of chronic diseases.

What is acceptable macronutrient distribution range for fat for adults?

The Dietary Guidelines for Americans' recommended Acceptable Macronutrient Distribution Range (AMDR) for fat intake is between 20 to 35% of total dietary calories for adults age 19 and older.