“Adherence to a gluten-free diet can result in a number of micronutrient deficiencies.
Although it is common for grain products, such as cereal or flour, to be fortified or enriched with vitamins and minerals, most gluten-free products lack this enrichment. For someone with celiac disease, gluten damages the small intestine which can impair the absorption of nutrients. Thus, individuals following a gluten-free diet are susceptible to nutrient deficiencies.” (Source: gluten.net/learn/)

Read more of the Gluten Intolerance Group’s Education Bulletin:“Supplementing a Gluten-Free Diet.” (Updated August 2011)