PubChem, National Library of Medicine, US National Institutes of Health
Dietary intake is modest estimated at 100-150 mg/day from fruits, vegetables, and meats and much of this is broken down by digestive enzymes (gamma-glutamyltranspeptidase and dipeptidases) in the intestinal lumen before absorption [1][2]
We also require that hospitals exclude zero-dollar claims from the count of allowed amounts because, as we noted in the proposed rule (90 FR 33797), they would result in a misleading and skewed calculation of the median, 10th percentile, and 90th percentile allowed amounts
KD has also been shown to cause changes in amino acid metabolism, in particular, a reduction in levels of -aminoadipic acid, a key biomarker of cancer (222)