This Is For A Friend Of Mine Who Has Been

This is for a friend of mine who has been having problems eating since what ever she eats leaves a bad taste I her mouth. At one time she was gluten intolerant and was on a gluten free diet. She has gone back to eating regular food, no longer watching for the gluten, she has lost quite a bit of weight and I am concerned. Has seen her doctor and has had blood work done but no answer.