Sugar, a simple carbohydrate, provides a rapid energy boost but is linked to health issues like obesity, diabetes, and dental caries. Sucrose, in particular, promotes tooth decay by fostering plaque buildup and acid production by bacteria. Sugar substitutes, both artificial (e.g., aspartame) and natural (e.g., stevia), offer sweetening alternatives with fewer calories, reducing the risk of cavities and weight gain. Sugar alcohols like xylitol also...