Many people who are recovering from celiac disease not only go a gluten-free diet, but often also take supplements to aid their healing and recovery. However, taking the wrong supplement may do more harm than good. If you’re taking supplements of any kind (vitamins, minerals, fish oil, other antioxidants etc), be aware it may be a hidden source of gluten. No, I don’t mean vitamins themselves contain gluten — they don’t. But unless your supplement contains only the product advertised (i.e.: doesn’t come in a capsule, is 100% pure, etc), it’s likely that the emulsifiers, additives, or capsules in your supplement may not be gluten-free. These other ingredients used in the manufacturing of your supplements are often made from plant-based products and can contain gluten. So if your supplements are not specifically labeled gluten-free, you should not assume that they are.
For example, I’ve been taking Coenzyme Q10 myself I passed over a CoQ10 brand that didn’t say it was gluten-free. It might sound a little over-the-top avoiding products like that, but I’ve seen products that label their stuff only vaguely, for example, stating that the supplement contains ‘emulsifier’ but not listing what ingredients went in making that emulsifier. I also found out a little about CoQ10 side effects but because CoQ10 is a product that generally presents few problems, I wonder if it might be the additives that are causing these supposed side effects (just a guess). Anyway, the prices of CoQ10 with a gluten-free label and those without weren’t very different, so I would rather be safe than sorry. This probably applies for a lot of other products as well. And if I remember correctly fish oil is the same, some of them are labeled and others are not, but the prices are relatively similar.
So if you’re taking any supplements or vitamins, be sure to read the ingredient list carefully and check if any of them are gluten-containing products. Or even better, just ditch anything that isn’t labeled gluten-free.