Survey participants reported that nutraceuticals, including folic acid and vitamin B12, generally offered slight to moderate benefits with minimal adverse effects
If your main goal is a direct immune boost, glutathione is likely the better choice
However, the largest source of glutathione can be found in sources of plant origin
Jin C, Bouzembrak Y, Zhou J, Liang Q, van den Bulk LM, Gavai A, et al
Beyond its antioxidant activity, glutathione participates in detoxification, mitochondrial function, immune regulation, and cellular signaling, making it one of the most extensively studied molecules in biochemistry and regenerative research
Giuliano, G