Norelle R. Reilly recently published an article in the Journal of Pediatrics – The Gluten-Free Diet: Recognizing Fact, Fiction and Fad:
Gluten-free packaged foods frequently contain a greater density of fat and sugar than their gluten-containing counterparts. Increased fat and calorie intake have been identified in individuals after a GFD. Obesity, overweight, and new-onset insulin resistance and metabolic syndrome have been identified after initiation of a GFD. A GFD also may lead to deficiencies in B vitamins, folate, and iron, given a lack of nutrient fortification of many gluten-free products.
Uh-oh. Not good for those people who are gluten-free for non-celiac reasons.
There is emerging evidence that those consuming gluten-free products without sufficient diversity may be at greater risk of exposure to certain toxins than those on an unrestricted diet. Arsenic is frequently present in inorganic form in rice, a concern for those on a GFD given that rice is a common ingredient in gluten-free processed foods.
A constant worry for us, since much of our diet is rice-based. Maybe 80% or so.
There also are noteworthy non-nutritional implications of a GFD. Worldwide, those purchasing gluten-free products will encounter far greater food costs than gluten containing competitors. Social isolation and inconvenience have been reported by children with CD requiring a GFD, and some with CD report a deterioration in their quality of life while on a GFD, linked in many cases to the diet itself.
We are lucky to be able to afford the time and expense of making much of our food from scratch in order to keep it as safe as we can from allergens. But it’s another worry for us in the future as our son grows up.