The correct answer would be, Proteins.
Proteins contain 4 Kcals per gram and is a minor fuel source.
Explanation:
Muscle mass in the body of humans are made through micronutrients, that are essential in the building of muscles.
Chemically discussing, the proteins are made up of amino acids. These are the organic compounds that are made up of Carbon, Oxygen, Hydrogen, Nitrogen and Sulfur.
Proteins are essential and important source of energy in the human body. Proteins can be taken by the humans through many sources. Some of the sources of Proteins are as follows:
- Meat
- Eggs
- Nuts
- Pulses
- Beans, etc
Proteins contain 4Kcals per gram and is considered a minor fuel source, whereas carbohydrates are considered the major fuel source.
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