About a year and a half ago, on the advice of a colleague, I gave up refined sugar. I was noticing that when I ate chocolate, the osteoarthritis in my fingers would flare up. Usually, I have no symptoms in my hands at all, so when I began having pain, my desire for chocolate diminished significantly.
Giving up chocolate was easy when I also decided to give up white sugar, as the two go together, traditionally.
Interestingly, when I stopped the sugar, I noticed a real change in my overall health.