While doing my research today, I noticed a mention of Celiac Disease being the possible cause of mouth ulcers, due to not following a strict gluten free diet.
Here is the quote from the article which references Celiac:
Other factors, such as chemical irritants or thermal injury, may also lead to the development of ulcers. The large majority of toothpastes sold in the U.S. contain SLS, which is known to cause aphthous ulcers in certain individuals. Using toothpaste without SLS will reduce the frequency of aphthous ulcers in persons who experience aphthous ulcers caused by SLS. A possible cause of aphthous ulcers in a susceptible population is gluten intolerance (Celiac disease), whereby consumption of wheat, rye, barley and sometimes oats, results in chronic mouth ulcers. One study concluded that one-third of its test group found relief from canker sores after eliminating gluten from the diet. This means observing a strict diet, eliminating breads, pastas, cakes, pies, scones, biscuits, beers and so on from the diet and substituting gluten-free varieties where available. The opportunity to go into such a drastic measure is to be balanced with its potential benefits.







