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Some people genetically do not have the ability to convert certain B vitamins (including B12) into their active form
Aseptic technique and the 28-day limit exist precisely because the preservative alone is not sufficient
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They regulate a wide range of functions, from hormone signaling to tissue repair, and are increasingly studied for their therapeutic potential
Metal-based systems (MnO, Cu 2 , Fe 3 ) deplete GSH and generate ROS, with imaging potential, though metal toxicity and accumulation are concerns
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