Grains and mythbusting
In a session partly devoted to mythbusting, Kathleen Zelman from WedMD said 1-2% of people have celiac disease, while the scientific literature suggests the percentage with NCGS/non-celiac gluten sensitivity could be around 5 to 6% (although we can’t be sure because there are no validated biomarkers or diagnostic tests). But avoiding gluten unnecessarily can lower diet quality, as well as increase your grocery bill, she cautioned.