3. Marmite
Marmite is made using a yeast extract which is said to help with mouth ulcers based on a lot of anecdotal evidence. We are not paid by Marmite though, so why have I put Marmite here and not vegemite?
The answer is that there are no studies that suggest yeast extracts can help with your ulcers and this is entirely anecdotal. In fact, some people say that using vegemite made their canker sore worse!
So, what is going on? In all likelihood, Marmite’s effectiveness comes from the fact that it is high in vitamin B12. Remember that ulcers are commonly a sign of a B12 deficiency! And with that in mind, this makes sense as a treatment – moreso than vegemite.