why do we need carbohydrates

We need carbohydrates primarily as they are the body's main source of energy. They provide the fuel necessary for the functioning of the nervous system, organs, and muscles. The brain specifically relies on glucose, which comes from carbohydrates, as its primary energy source. Carbohydrates are broken down into glucose during digestion, which then enters the bloodstream and is used by cells for energy. Excess carbohydrates can be stored as glycogen in muscles or converted to fat if glycogen stores are full. Besides energy, carbohydrate-rich foods also supply essential nutrients like fiber, vitamins, and minerals that support overall health including digestion, heart health, and weight management. Cutting carbohydrates too low can cause symptoms such as fatigue and nutrient deficiencies and may not be sustainable or healthy long term.