MMA/PA Maxamum Powdered Medical Food, Orange Flavor, 16 ounces, 454g. 1385 calories per can.A methionine-, threonine-, and valine-free, low isoleucine powdered formula for the dietary management of methylmalonic acidemia (MMA) or propionic acidemia (PA) for older children, teens and adults. Contains a balanced mix of the other essential and non-essential amino acids, carbohydrates, vitamins, minerals and trace elements.