Vitamins and minerals are simple chemical compounds and can beadded to just about any food. Sugar is fat free. Sugar is a carbohdrate and fat is a lipid. So be careful. Each class contains a large number of individual chemical substances.
Fats belong to a class of chemical compounds called triglycerides.
Three long chain organic acids each containing a string of from about 12 to about 18 carbon atoms. Food and beverage manufacturers can, and do, add vitamins and minerals to various food stuffs containing either or both sugars and fats. But living on sugar is NOT the key to a fat-free lifestyle. Your body uses sugar as fuel. The sugar you'd buy in the grocery store is broken down into a couple of simpler sugars for use.