More protein in your breakfast or snacks won’t give you more muscle without more work – a biologist separates the science from the marketing
Do you really need all those protein supplements in your diet? Djavan Rodriguez/Moment via Getty Images Growing up, my brothers were fascinated by the first “Rocky” movie. They were trying to get stronger and excel in sports, so one scene stood out almost as much as Rocky sprinting up the museum st…
Résumé
Protein's role
Protein is one of the three macronutrients (alongside carbohydrates and fats) essential for the body's functioning.
While carbohydrates and fats primarily provide energy, protein's main role is to build and repair tissues, including muscles, skin, hormones, and the nervous system.
For example, protein is necessary for the skeletal muscles used in movement, the heart muscle, and the muscles that digest food.
The article emphasizes that protein is not just 'muscle food' but supports many vital body functions.
Proteins are made up of smaller units called amino acids, of which there are 20 types.
Nine of these are essential amino acids because the body cannot produce them and must obtain them from food.
Animal-based proteins like eggs, dairy, fish, and meat typically contain all essential amino acids, while most plant proteins are low in one or more.
Soybeans are an exception, providing a complete set of essential amino acids.
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