Relier Pairs Macronutrient Sources and FunctionsVersion en ligne Match the Sources and Functions to the nutrient par Lisa O'Leary-Reesor 1 protein main functions 2 unsaturated fat function 3 macronutrients 4 carbohydrates main function 5 saturated fat food sources 6 protein sources 7 carbohydrate food sources 8 unsaturated fat food sources 9 saturated fat function insulates body and plumps it up but too much is bad for your heart; high source of energy provide calories (energy), consist of pro, fat and carbs contributes to healthy heart, high soruce of energy, transport vitamins A,D,E,K around body