Why Is Protein Important For Humans by Pavithra
Dec 17, 2024
2 min read
I’m Pavithra KB, nutritionist at The Kenko Life.
Protein plays a crucial role in the human body, serving as one of the building blocks for tissues and organs. Below are some of the key functions of protein:
Building and Repairing Tissues
Proteins are essential for the growth, maintenance, and repair of cells and tissues. For instance, muscles, skin, hair, and nails are made up of proteins, and they rely on protein for repair after injury or wear and tear.
Enzyme Production
Proteins are responsible for creating enzymes, which are biological catalysts that speed up chemical reactions in the body. These enzymes are involved in digestion, energy production, blood clotting, and numerous metabolic processes.
Immune System Function
Proteins are key components of the immune system. Antibodies, which help the body recognize and fight pathogens (like bacteria and viruses), are made from proteins. This is crucial for defending against infections and diseases.
Hormone Regulation
Many hormones in the body, such as insulin and growth hormones, are proteins. These hormones help regulate various physiological functions, including metabolism, growth, and blood sugar levels.
Transportation and Storage
Certain proteins act as transporters, carrying molecules such as oxygen (via hemoglobin in red blood cells) and nutrients throughout the body. Proteins also help store important substances like iron and some vitamins.
Providing Energy
While carbohydrates and fats are the body’s primary energy sources, proteins can also be used for energy if needed. However, the body typically prefers to use proteins for its structural and functional roles rather than as an energy source.
Maintaining Fluid and Acid-Base Balance
Proteins help maintain the balance of fluids and electrolytes in cells and tissues, which is critical for normal cell function. They also help regulate the body’s pH level to keep it within a narrow, optimal range.
Structural Support
Proteins like collagen and elastin provide structural support in connective tissues such as skin, tendons, and ligaments. These proteins also give strength and elasticity to the body’s tissues.
Brain Function and Communication
Protein is involved in the production of neurotransmitters, which are chemicals that facilitate communication between nerve cells in the brain and nervous system. This is vital for cognitive function, mood regulation, and overall mental health.