Eating sugar increases the sugar level in your body for some time. Sugar is also food for bacteria and that leads to pus and inflammation and caries (the sugar

Eating sugar increases the sugar level in your body for some time. Sugar is also food for bacteria and that leads to pus and inflammation and caries (the sugar in the saliva is converted to acid by bacteria). There are also other bio-chemically active substances like certain fats and oils. Notably oils containing much Omega-6 acids (inflammation) like in sunflower seeds or sunflower oil. Chocolate is bad not only because of the sugar.