This would be the case if the glutathione molecule was substantially modified structurally (i.e., chemically), so that it would no longer be regarded as a dietary supplement by the Food and Drug Administration
Schneider R, Randolph GW, Dionigi G, Wu CW, Barczynski M, Chiang FY, Al-Quaryshi Z, Angelos P, Brauckhoff K, Cernea CR, Chaplin J, Cheetham J, Davies L, Goretzki PE, Hartl D, Kamani D, Kandil E, Kyriazidis N, Liddy W, Orloff L, Scharpf J, Serpell J, Shin JJ, Sinclair CF, Singer MC, Snyder SK, Tolley NS, Van Slycke S, Volpi E, Witterick I, Wong RJ, Woodson G, Zafereo ME , Dralle H
1991;5 Suppl 1:97-105
Target organs (brain, lungs, liver and spleen) were transferred to sterile plastic tubes
De Vivo DC, Bohan TP, Coulter DL, et al