Confectionery is the set of food items that are rich in sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, any one or type of which is called a confection. Modern usage may include substances rich in artificial sweeteners as well. The word candy

Candy

Candy, specifically sugar candy, is a confection made from a concentrated solution of sugar in water, to which flavorings and colorants are added...

(North America), sweets (UK and Ireland) and lollies (Australia and New Zealand) are also used for the extensive variety of confectionery.

Generally speaking, confections are somewhat low in micronutrients but rich in calories.