"Acetyl-L-Carnitine in Dementia and Other Cognitive Disorders: A Critical Update." Nutrients
J Biol Chem 264:1351913523 Vojdani A, Mumper E, Granpeesheh D, Mielke L, Traver D, Bock K, Hirani K, Neubrander J, Woeller KN, OHara N, Usman A, Schneider C, Hebroni F, Berookhim J, McCandless J (2008) Low natural killer cell cytotoxic activity in autism: the role of glutathione, IL-2 and IL-15
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The digestive tract is bypassed entirely, meaning nutrients reach target tissues in concentrations that oral vitamins rarely match