“People may believe a gluten-free diet is healthier, and the diet is trendy,” Kim said.
To see whether the prevalence of celiac disease and the use of a gluten-free diets had increased over the past few years, Kim and his colleagues used data collected between 2009 and 2014 on 22,278 adults and children in the U.S. who were at least 6 years old and had been tested for celiac disease or interviewed about prior diagnoses.
