Circulating ghrelin level is increased in coeliac disease as in functional dyspepsia and reverts to normal during gluten-free diet.
Lanzini A, Magni P, Petroni ML, Motta M, Lanzarotto F, Villanacci V, Amato M, Mora A, Bertolazzi S, Benini F, et al. Aliment Pharmacol Ther. 2006 Apr 1; 23(7):907-13.