This paper provides a summary of article, titled, “Amino Acid 101: Proteins' Building Blocks”, written by O'rya Hyde Keller. It was published in the 2005 issue of the “Natural Foods Merchendiser”. In this article, the author has debated about the benefits of amino acids. The author is of the opinion that Proteins, also essential macronutrients, are complex chemical compounds whose primary structure is defined by a specific sequence of amino acids. These amino acids serve the primary function of building and maintaining the various tissues of the body. While protein can provide the same ...