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contentuptodate· Content· item f2_3_2108

©2013 UpToDate ® Print Email Amino acids Nonessential Alanine Arginine Asparagine Aspartic acid Citrulline Glutamic acid (glutamate) Glutamine Glycine Histidine* Proline Serine Tyrosine Essential Isoleucine Leucine Lysine Methionine Phenylalanine Threonine Tryptophan Valine * Essential for infants.