Sugar

Sugar, any of numerous sweet, colourless, water-soluble compounds present in the sap of seed plants and the milk of mammals and making up the simplest group of carbohydrates. The most common sugar is sucrose, a crystalline tabletop and industrial sweetener used in foods and beverages. Eating sugar gives your brain a surge of a feel-good chemical called dopamine. Sugary drinks, candy, baked goods, and sweetened dairy are the main sources of added sugar. But even some savory foods, like breads, tomato sauce, and protein bars, can have sugar, making it all too easy to end up with a surplus of the sweet stuff. Added sugars may be hard to spot on nutrition labels since they can be listed under a number of names, such as corn syrup, agave nectar, palm sugar, cane juice, or sucrose.