<<Disclaimer: Verify this information before applying it to your situation.>> Thanks to everyone for the response to the question about my 17 month old daughter's low ph levels (4 out of a scale of 6). Here is a summary: It could be a malabsorption still because it takes more than a few months to recover after going on the gf diet. It could be a related lactose intolerance - this could cause malabsorption even if gluten is eliminated. What is not known is whether or not other sugars can interfere with absorption (sucrose, fructose in addition to lactose). Try a lactose free diet for a month, then do a stool retest to check ph levels. You may want to get in touch with Dr. Finer.www.enterolab.com Don't do the invasive procedure without getting a second opinion. (Here is what I have done: will be consulting a second physician, will try the lactose free diet for a month, will consult with Dr. Fine and try non-invasive tests from Enterolab (includes a genetic test and a stool test). What I need help with is figuring out a lactose free diet for Jessie, who loves cheese and yogurt. Is butter lactose free?). Thank you for all your help. Rhonda