L-tryptophan recall

FDA expanding its recall of the dietary supplement to include products that contain any dosage of the amino acid, the agency announced in a March 22 release. Products not subject to the recall are "some protein supplements, infant formulas, special dietary foods, and I.V. and oral solutions in which small amounts of L-tryptophan are needed for nutrient fortification." FDA said that reports of eosinophilia-myalgia syndrome (EMS) linked to L-tryptophan products "have climbed to 1,411, with 19 deaths." The initial recall, which began Nov. 17, involved products that would result in a daily intake of 100 mg or more of L-tryptophan. At the time, 287 illnesses and four deaths were reported.