"Sugar" refers to a class of sweet-tasting carbohydrates, primarily sucrose, found naturally in plants like sugarcane and sugar beets. It is widely used as a sweetener in food and beverages, providing energy (4 kcal per gram) but lacking essential nutrients. Common forms include granulated, powdered, and brown sugar. Excessive consumption is linked to health issues like obesity, diabetes, and tooth decay. Industrially, sugar is extracted, purified, and crystallized for commercial use. It also plays roles in food preservation, fermentation, and texture enhancement. Alternatives like artificial sweeteners or natural substitutes (e.g., honey) are increasingly popular for health-conscious consumers. Sugar remains a staple in global diets despite ongoing health debates.