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What Is Main Purpose of Protein in Living Things?

Published Jun,13 2017 | By Angela Ogunjimi

Protein is a nutrient your body needs to grow, as well as to support and maintain your life. After water, protein is the most plentiful substance in your body. You might know that your muscles are composed of protein, but the substance, in its various forms, serves in other crucial roles.

Angela Ogunjimi has been a prize-winning writer and editor since 1994. She was a general assignment reporter at two newspapers and a business writer at two magazines. She writes on nutrition, obesity, diabetes and weight control for a project of the National Institutes of Health. Ogunjimi holds a master's degree in sociology from George Washington University and a bachelor's in journalism from New York University.