Frequent exposure to sweetness makes your taste receptors accustomed to it, like building up a tolerance.
It's obvious by a simple experiment: cut out everything sweet (at the very least candy, sweets and desserts) for a couple of weeks, then try eating a candy bar or a thickly-frosted cupcake. It will taste almost unbearably sweet.
Make sweets something you only enjoy as a rare treat, and you'll find that you'll eat much less of them, because the sweetness will simply be too much.
It's obvious by a simple experiment: cut out everything sweet (at the very least candy, sweets and desserts) for a couple of weeks, then try eating a candy bar or a thickly-frosted cupcake. It will taste almost unbearably sweet.
Make sweets something you only enjoy as a rare treat, and you'll find that you'll eat much less of them, because the sweetness will simply be too much.