The Side effects of taking sugar are too much more than the benefits. It could impact your heart, may increase your risk of cancer Can Cause Weight Gain, and May Increase Your Risk of Heart Disease, which are all linked to an increased risk for heart attack and stroke.
however, vegans have some others cause for concern about at least some kinds of sugar. They doubt that sugar is using Animal products, is that True?
What is sugar?
Sugar is the name of simple carbohydrates & sweet-tasting used in food. Simple sugars are also monosaccharides, including glucose, fructose, and galactose. compound sugars called disaccharides or double sugars are molecules made of two bonded monosaccharides. 
Is sugar vegan?
Yes. But not all sugar is vegan, while sugar comes from the sugarcane plant-based and does not contain animal products. in the process of manufacturing the sugar, they sometimes refined using bone char, which is the bone of cattle, thus making some types not vegan-friendly. You can find in the market a lot of Sugar vegan Alternatives.
What is sugar made from?
Sugar comes from sugar cane or sugar beets grown on farms, though most of the world’s sugar manufacturing comes from sugar cane farmers. then they extracted its raw form before being milled and then refined is what ends up in your pantry.
There are a lot of Sugar Types Invert Sugar / Syrup, Golden Caster Sugar, Light / Dark Brown Sugar, Muscovado Sugar, Demerara Sugar, Raw / Turbinado Sugar, Cane Sugar, Caster Sugar, Icing Sugar Granulated / Refined / White Sugar.
Also, there are plenty of Vegan sugar alternatives if you are still Curious? Click on the blue area to find out