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cfsucks
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<div class="FTQUOTE"><begin quote><i>Originally posted by: <b>Diane</b></i>It can be oral or inhaled or both. In the study it said both orally and inhaled. I myself only do it orally.</end quote></div>
see when i googled it, wiki said that oral doses were ineffective...
<div class="FTQUOTE"><begin quote>Supplementing has been difficult, as research suggests that glutathione taken orally is not well absorbed across the GI tract. In a study of acute oral administration of a very large dose (3 grams) of oral glutathione, Witschi and coworkers found that "it is not possible to increase circulating glutathione to a clinically beneficial extent by the oral administration of a single dose of 3 g of glutathione."[9], [10]. However, tissue and serum glutathione concentrations can be raised by increased intake of the precursor cysteine. Glutathione precursors rich in cysteine include Acetylcysteine (NAC),[11] undenatured whey protein [12], [13], [14], [15], [16], [17], [18], [19]and N-acetyl-cysteine [20] have been shown to increase glutathione content within the cell. N-acetylcysteine is a generically available supplement which has been demonstrated to increase intracellular reduced and total glutathione by 92% and 58% respectively. [21] All of the published clinical studies using bioactive whey proteins mentioned in the references above used a form of a bioactive whey protein and bonded cystine dietary supplement derived from lactose-free organic milk (whey protein) called Immunocal. This whey protein is clinically proven to increase glutathione levels within the lymphocytes of the immune system by 35.5% while increasing peak power and muscular performance by 13%.</end quote></div>
see when i googled it, wiki said that oral doses were ineffective...
<div class="FTQUOTE"><begin quote>Supplementing has been difficult, as research suggests that glutathione taken orally is not well absorbed across the GI tract. In a study of acute oral administration of a very large dose (3 grams) of oral glutathione, Witschi and coworkers found that "it is not possible to increase circulating glutathione to a clinically beneficial extent by the oral administration of a single dose of 3 g of glutathione."[9], [10]. However, tissue and serum glutathione concentrations can be raised by increased intake of the precursor cysteine. Glutathione precursors rich in cysteine include Acetylcysteine (NAC),[11] undenatured whey protein [12], [13], [14], [15], [16], [17], [18], [19]and N-acetyl-cysteine [20] have been shown to increase glutathione content within the cell. N-acetylcysteine is a generically available supplement which has been demonstrated to increase intracellular reduced and total glutathione by 92% and 58% respectively. [21] All of the published clinical studies using bioactive whey proteins mentioned in the references above used a form of a bioactive whey protein and bonded cystine dietary supplement derived from lactose-free organic milk (whey protein) called Immunocal. This whey protein is clinically proven to increase glutathione levels within the lymphocytes of the immune system by 35.5% while increasing peak power and muscular performance by 13%.</end quote></div>