The reason why I mentioned this is that, on a recent TV programme, a farmer who grows it told the viewer that people with allergies/intolerances are able to tolerate it.
Differences [Wikipedia]
Spelt is also higher in fiber than wheat, and the extra fiber aids in the digestion of the gluten. Modern wheat has been bred to contain a high gluten content for the production of high-volume commercial baked goods. The content and character of the gluten in spelt has not been modified from its natural state.
also from the same source :
A large body of evidence indicates that spelt is easier to digest than wheat, and is generally better tolerated. It also provides you with a broader spectrum of nutrients than wheat. It is an excellent source of B1, B2, B3 (Niacin), manganese, magnesium, protein and fibre as well having a low glycemic index.14 Oct 2013. The body of evidence isn't mentioned however.