Mao found that treating cancer cells with GPX4 inhibitors resulted in acute depletion of N-carbamyl-L-aspartate (C-ASP, a pyrimidine biosynthesis intermediate), accompanied by accumulation of uridine, which could be inhibited by fer-1, a ferroptosis inhibitor [18]
& Dupont, A
influenzae to acquire host-derived sources of haem-iron (Nelson et al., 2005
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Without the human safety data and a lack of FDA approval, sourcing peptides from an unregulated gray-market source introduces real risks of contamination, inaccurate dosing, and unknown ingredients
This makes supplementation especially important for vegetarians, older adults, and those with digestive disorders or a history of GI surgery