Mma/pa express15, 25 gram packets.74 calories and 15 grams protein equivalent per packet.Mma/pa express is a powdered methionine, threonine, and valine free medical food for the dietary management of methylmalonic academia and propionic acidemia.Mma/pa express is suitable from 3 years of age and throughout life.Mma/pa express is a medical food intended for use under medical supervision.