i've been adhering to a gluten free diet now since May of this year, so that's a period of about four or five months, taking into account the learning curve. i've made some mistakes along the way, but have stayed true to the diet most of this time. the worst of my symptoms have improved or resolved since then, including mouth sores, back pain, joint pain, bloating, abdominal pain, fevers, fatigue, depression, irritability. you get it.