They are, they're called minis :) https://www.piccantino.com/mars/classic-minis

But if you want to indulge, there's a lot much much nicer quality treats than a mars bar, that's what I meant. That might be better for you but also a lot tastier.

But tastes differ of course. I love sweets and snacks and I eat too many but I never like the American ones so much. We have a shop nearby that sells American sweets but they are all so heavy on the sugar. Chocolates are too sugary, You can't really taste anything else. And things like nerds have this really strong artificial flavour. But that's personal of course and also what I grew up with.