As we've been away I've been trying Peptizyde enzymes (one per gluten containing meal) as an alternative to a completely GF diet. I've survived 3 weeks without brain fog or chronic fatigue and just one upset stomach (which could have been forgetting to take the tablets or salmonella from a runny egg). So these are more effective than Biocare Glutenzyme plus. For the time being I've gone back to a GF diet but I may try them again when I've recovered from jet-lag and have more chance of remembering them.
I know there are others here who are not diagnosed as coeliac but feel better on a GF diet and thought you might be interested.