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.