But it’s not just the empty calories that are the problem, or even the excess calories. Because even if you’re getting all the nutrients you need and are only consuming enough calories to maintain a healthy weight, eating a lot of sugar is still bad for you. Here are two of the top reasons why sugar is bad:

Sugar suppresses the immune system. When you eat a big dose of sugar, like a bottle of Coke or a candy bar, you temporarily tamp down your immune system’s ability to respond to challenges. The effect lasts for several hours, so if you eat sweets several times a day, your immune system may be perpetually operating at a distinct disadvantage.
Sugar promotes inflammation. Inflammation, which is part of the immune response, is not always a bad thing. But eating sugar foods can fuel excessive, inappropriate inflammation that serves no useful purpose and actually promotes aging and disease. In my show on foods that fight inflammation, I pointed out that cutting back on sugary foods will help you avoid excess inflammation.

To lose weight, burn fat of your body and have a low waist line; you have avoid to sugar. This is a sacrifice you have to made if you think it had. For diabetics, you just have avoid sugar absolutely and carbs that are low and good. For a normal person, taking sugar should be in moderation but for a BETTER health, better avoid it absolutely as the op state as well. You can restrict your sugar intake only to the drinks you consume and other branded product.