Granola is usually considered a healthy breakfast cereal. It's a toasted mixture of rolled oats, nuts, and a sweetener like sugar or honey, though it can also include other grains, puffed rice, dried fruit, seeds, spices, and nut butters. Granola tends to be made from whole oats, some nuts or seeds and dried fruit. ... But often, ingredients like oats and nuts are bound together by a sticky sweetener, which can increase granola's sugar content.