Try 99% cocoa solid chocolate, which means it is for all practical purposes devoid of sugar. It's fucking expensive, I have bought 50 g for 3 €; the same money can you buy 300 g of Milka, which is considered one of the most popular brands of regular chocolate here. Removing the sugar from chocolate removes its hyper-palatability. Trust me, you are not tempted to devour it in order to give you an endorphine fix like with regular chocolate. Taking only two small 5 g squares of that chocolate in your mouth, one in each cheek, and have them slowly melt, is pure bliss. Try it one time if you haven't already!