This gland makes its hormones by combining iodine with the amino acid tyrosine
... Hi Martha, Generally the amounts of amino acids in foods are just... [DOC] [TLE] The Endocrine System: Thyroid and Parathyroid Gland - Baseline of ... [PAR] Jun 14, 2010 ... Thyroid cells combine iodine and the amino acid tyrosine (as bound to ....