Mrs Collins , five , eats everything from stones and sponges to sand . Has Pica , a disorder meaning he has cravings for non-food substances . Was diagnosed three years ago after eating sand on a holiday in Cornwall . Now needs constant supervision and has to play indoors all summer .
Eoin Collins , five , eats everything from stones and sponges to sand . Has Pica , a disorder meaning he has cravings for non-food substances . Was diagnosed three years ago after eating sand on a holiday in Cornwall . Now needs constant supervision and has to play indoors all summer .