My son, Grayson, is nine years old. He was diagnosed with CF a couple of months before he turned 7 years old. Fortunately, all of his problems have been strictly GI; unfortunately, after complaining for months with stomach pain, he was diagnosed with Eosinophilic Esophagitis. His GI doctor put him on a strict, non-milk diet in January. We are happy his stomach pain has disappeared, but it is so hard to help him gain weight without the calories and the fat from dairy products. Even the supplements such as Boost and Ensure have milk or milk proteins. Does anyone have any experience with this? He was gaining weight at a snail's pace before the diet, now he doesn't gain at all. What can we do?