Carbohydrates are the body’s chief source of energy for all metabolic functions and anaerobic muscular exertions.  Additionally, carbohydrates are necessary for the digestion and absorption of the other macronutrients.  Fats, for example, require carbohydrates for their breakdown in the liver and to provide energy intermediates for their complete oxidation in the muscle cells.

Yes carbohydrate is correct answer that is because carbohydrate contains starch when this starch come to simpler form it becomes glucose which is used to provide energy 

Major Source of Energy in Food: Carbohydrates

Carbohydrates are the primary source of energy for the human body. They are macronutrients that provide the bulk of our energy needs. When we consume carbohydrates, our body breaks them down into glucose, which is then used to fuel our cells.

Reasons why carbohydrates are the major source of energy:

1. Efficiency: Carbohydrates are the most efficient source of energy for the body. They can be easily and quickly broken down into glucose, which can be used by the body to produce energy.

2. Availability: Carbohydrates are readily available in many foods, including fruits, vegetables, grains, and dairy products. This makes it easy for us to obtain the energy we need to function.

3. Storage: Carbohydrates can be stored in the body as glycogen, which can be used as a source of energy later on. This makes carbohydrates a convenient source of energy, especially during times of fasting or when food is scarce.

4. Brain function: Glucose is the primary fuel for the brain. Without a steady supply of glucose, the brain cannot function properly. This is why carbohydrates are essential for brain function and mental clarity.

Conclusion

In conclusion, carbohydrates are the major source of energy for the human body. They are efficient, readily available, and can be stored in the body for later use. Without carbohydrates, our body would not have the energy it needs to function properly.