Answer:
Carbohydrates
Step-by-step explanation:
Carbohydrates are main sources for energy for the body. They are called carbohydrates because, at the chemical level, they contain carbon, hydrogen and oxygen.
Foods high in carbohydrates include bread, pasta, beans, potatoes, rice and cereals.
Carbohydrates are also very important for the brain because neurons can not burn fat.
Carbohydrates have been linked to the global rise of obesity, especially among children. This theory has not been proved right as many other factors come into play as well, such as lack of physical exercise or high consumption of junk food.