Question

Fats have higher energy value than carbohydrates and protiens,however CHO is a cheif source of energy.why?

Answer 1

While it is true that fats have a higher energy value than carbohydrates and proteins (9 calories per gram for fats compared to 4 calories per gram for carbohydrates and proteins), carbohydrates are considered the chief source of energy for several reasons:

1. Efficiency: Carbohydrates are more readily and efficiently converted into energy by the body compared to fats. Carbohydrates are broken down into glucose, which is the primary source of energy for the brain and muscles.

2. Rapid energy release: Carbohydrates provide quick energy as they are broken down and absorbed more rapidly compared to fats. This is particularly important during intense physical activities or exercises when a quick burst of energy is required.

3. Storage and accessibility: Carbohydrates are stored in the body as glycogen in the liver and muscles, which can be easily accessed and utilized whenever energy is needed. In contrast, fats are stored as adipose tissue, and their conversion into energy requires more time and effort.

4. Balanced diet: Carbohydrates are an essential part of a balanced diet because they also provide essential dietary fiber, vitamins, and minerals. Fats, on the other hand, are important for various bodily functions but consuming excessive amounts can lead to health issues like weight gain and cardiovascular problems.

While fats provide more energy per gram, carbohydrates play a crucial role as the chief source of energy due to their faster energy release, efficient conversion, storage, and their overall nutritional contribution to a healthy diet.