Using the exchange system, if a person ate two fat exchanges with a meal, such as one-quarter of an avocado, how many calories would he or she get from the avocado?

If you are following the Exchange System, a two fat meal exchanges with one-quarter of an avocado may approximately get 60 calories or 6 grams of total fat.  An exchange can be explained as a substitution with any other food on the food list and each list is a group of measured or weighed foods with same nutritional value. In addition, fruits was listed as 15 grams carbohydrate with subsequent increase in calories to 60 per exchange serving.