MMA/PA express is a medical food intended for use under medical supervision in the dietary management of methylmalonic acidemia and propionic acidemia (MMA/PA).. Blend of essential and non-essential amino acids, carbohydrate, vitamins and minerals. Designed to be mixed with approximately 3 ounces of water or other permitted beverages to a low volume drink. 15-gram protein equivalent per packet. Neutral taste allows flexibility in flavoring to prepare a variety of delicious drink options.. 30 25-gram packets per box.