Many practitioners suggest using both since NAD+ increases mitochondrial activity and produces more reactive oxygen species, while glutathione neutralizes these byproducts
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Se supplementation in septic patients showed that the group received Se had significantly higher GSH-Px levels compared to those treated with placebo beginning at the first days of supplementation [86]
"What is also cause for concern are side effects of intravenous injections, as well as the variable quality of the glutathione which could be supplied by suspect international sources to make a quick buck
Thats because it has demonstrated a broader range of secondary benefits in clinical research those related to insulin sensitivity,4 mitochondrial function,5 weight,6 eye function,7 sleep,8 and telomeres9 compared to NRs neuroprotectant action.10 With that being said, better ultimately depends on your health goals