Sucrose is just the chemical name for what we would call normal sugar.. the same type that you put in your tea and coffee etc. Klebsiella will feed on sugar if it can get to it, but sucrose (like other types of sugar) is very soluble in water so it has very little chance of making it to the large intestines as it will be absorbed before it gets there.

I don't think sugar would be a problem unless you eat a lot of it?

The diet is not an exact science unfortunately.

I know many people say that this makes them flare or that makes them flare... I think most of it is probably imagined. AS is such a variable disease, with good and bad periods and flares which come and go with no real observable pattern. I think it is pretty easy to blame something you recently ate for a flare up which probably would have happened anyway.

Hopefully others who have had more experience can shed more light on it for you.