Affects your liver
Sugar is essentially broken down into glucose and fructose. While glucose metabolism is possible and essential in any cell of the body, the same isn’t true for fructose as fructose breakdown is possible only in the liver. So, the more you take in sugar, the higher the amount of fructose that needs to be metabolized by the liver. Not only that, the glycogen that is produced from fructose metabolism remains stored in the liver and when formed in excess, the glycogen gets converted into fat, leading to deposits of fat in the liver which causes the fatty liver disease.
Increase insulin resistance
Higher consumption of sugar can cause cells of your body to become resistant to insulin, thereby impeding the regular functions of insulin, the most important being the absorption of blood sugar (or glucose) by the cells and its use. Naturally, glucose remains in the blood stream and gives rise to a number of prolonged diseases like cardio-vascular diseases, obesity, metabolism syndrome and type II diabetes.