Answer: carbohydrate

AnswerCrossword Clue
carbohydrateAny of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body
carbohydratea compound of carbon, hydrogen and oxygen; extended to similar compounds, the sugars and starches which form the main source of energy in food