Willpower is the only answer. If you are used to eating a lot of sugar laden food it’ll be hard but if you want to rid yourself of such cravings you’ll need to be prepared to feel out of sorts for a while until your body accepts that from now on it is going to get less sugar.

The best way forward is probably to do what we do on fast days when we want to eat something, have a drink and find something to do until the craving passes. It might help to remind yourself just how bad excessive sugar is for you.

It will become easier, I have found that I want sweet things much less often and when I do have them I choose carefully and savour every morsel.