Juliana 858 Views March 29, 2017, 08:37:14 AM Question Solved Share Tweet Proteins' main function in the body is to: a. Insulate and protect organs. b. Provide energy. c. Make and repair body cells. d. Aid in digestion of vitamins. Joellen March 29, 2017, 08:51:11 AM #1 Answer c.Make and repair body cells. Kelle March 29, 2017, 09:05:38 AM #2 My sincere thanks.