Three aspects of knowledge on sugar, namely its history, chemistry of sugar, People like sugar for its sweetness and its energy. Sugar is the sweetener widely used in food and beverage industry. So this sweetener became known as sugar. However, sugar has many names and forms such as sugar cane, rock sugar, palm sugar, etc. Sugar makes to taste delicious food and necessary in the diet. The brain depends on it. So it does our level of energy. It is unfortunate that the consumption of excessive amounts of sugar any cause adverse effects on our health such as decayed tooth, heart disease, obesity, diabetes mellitus, etc. Therefore, we will get know more about sugar for good health and the health impact. The history of sugar has passed through several eras and involving several countries. Sugar cane was first found by the people of New Guinea, Sugarcane was first found by the people of New Guinea, around 8,000 BC. After the discovery of New Guinea people, its cultivation spread quickly to exported the cane plant and refining techniques to the Middle East and Europe. It was not used in early times. Honey was more often used for sweetening. In South Asia and Europe, sugar became essential food ingredient and widely popular.