He talks about how it's effective and important, mentioning that it fueled the industrial revolution
The GSTs are a multigenic superfamily of detoxification enzymes that are essential for cell protection against oxidative damage, as well as the biotransformation of xenobiotics, due to their acting on a wide variety of substrates, mediating the conjugation of reduced glutathione to electrophilic species which leads to the elimination of toxic compounds [9][10]
And the evidence keeps growing
[192] but under altered premises, Australian elderly (6084 y/o), supposedly representing a population group with low incidences of vitamin D deficiency, consumed 60,000 IU cholecalciferol on a monthly basis for five years, but no significant effects on hospitalization due to infection, despite a decline in the number of extended hospitalizations (over 6 d), could be observed, suggesting that general supplementation in people with adequate vitamin D serum concentrations exert only little effects, whereas its role in infectious disease is reinforced [194]
Biomolecules 10 (6), 958
