What is an Acceptable Macronutrient Distribution Range (AMDR)?
An Acceptable Macronutrient Distribution Range (AMDR) is defined as a range of intakes for a particular energy source that is associated with reduced risk of chronic disease while providing adequate intakes of essential nutrients. An AMDR is expressed as a percentage of total energy intake. If an individual consumes below or above this range, there is a potential for increasing the risk of chronic diseases shown to affect long-term health, as well as increasing the risk of insufficient intakes of essential nutrients. AMDRs have been established for protein, carbohydrate, fat, and linoleic (n-6) and alpha-linolenic (n-3) polyunsaturated fatty acids.