I was told by my doctor not to have milk or milk products but not when I take my creon. I dont like milk much but my mom used to put creon in my pudding, which has milk in it. As for the weight loss, maybe she needs more enzymes. I take as many now as I did as a kid. I take 3-5 with snack and 6-8 with meals. I usually just take 7 with everything because I dont just snack, I eat a whole meal. Now if I eat something high in fat and protein like red meats or any kind of meat in general, I'll take 8. Has she tried Pancrease(pancrelipase)? I have a friend who has CF and he had a weight gain problem with Creon as well and was switched to Pancrease. But he takes about 20 with every meal.