30% of US adults trying to cut down on gluten, claims NPD Group Posted by Leslie on 11/03/2013 Posted in: Gluten Free Info. Tagged: celiac, gluten free, wheat belly. 30% of US adults trying to cut down on gluten, claims NPD Group. Posts navigation ← Interview: Martyn Gray, new boss at Nairn’s – Management – Scotsman.com Andean Dream CEO Ingrid Hirstin Lazcano talks quinoa →