L-threonine

L-threonine/Nutrient Depletion:

  • L-tryptophanL-tryptophan: In human research, use of a tryptophan-free amino acid mixture, containing L-threonine, reduced plasma levels of tryptophan (17). However, clinical significance is lacking, as the authors concluded this was due to the lack of tryptophan as opposed to the inclusion of L-threonine.