"Preliminary studies of lysine with competitors have shown lysine uptake to be consistent with the Y+ transport system as the high affinity uptake mechanism (Table 1). Arginine and ornithine (cationic amino acids which use the Y+system) are strong inhibitors of lysine uptake. In addition to the cationic amino acids, the neutral amino acids also have a strong interaction with the uptake of lysine. Leucine and cyclo-leucine, both substrates for the L uptake system, showed inhibition of lysine uptake, though not as strong as the cationic amino acids. Other neutral amino acids such as methionine and alanine (system ASC substrates), also inhibited lysine uptake. Lysine uptake was partially inhibited by D-lysine, indicating that the uptake mechanism is only partially stereospecific. Most naturally occuring amino acids are of the L stereoisomer. A substrate for system A, MeAIB (methyl aminoisobutyric acid), did not significantly inhibit lysine uptake."
Knabe,D.A., J.H. Brendemuhl, L.I. Chiba, and C.R. Dove. 1996. Supplemental lysine for sows nursing large litters. J. Anim. Sci. 74:1635-1640.
Rickert, B.T., M.D. Tokach, R.D. Goodband, J.L. Nelseen, J.E. Pettigrew, R.D. Walker, and L.J. Johnston. 1996. Valine requirement of the high-producing sow. J. Anim. Sci. 74:1307-1313.
Shennan, D.B. 1998. Mammary Gland Membrane Transport Systems. J. Mam. Gland Biol. Neoplasia 3: 247-258.
Trottier, N.L., C.F. Shippley, and R.A. Easter. 1997 Plasma amino acid uptake by the mammary gland of the lactating sow. J. Anim. Sci. 75:1266-1278.
and arganine is the main ingreadient in any of those pricey NO products so i assume its safe
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