glutathione deficiency covid induces epigenetic alterations of vitamin D metabolism genes in the livers of high-fat diet-fed obese mice Long COVID and Oxidative Stress:
Description
However, a combination of factors characterizes potential biases, and it is relevant to note: the small sample size (n = 21), the imbalance in the groups composition (17 men and four women), and the fact that the dark chocolate intervention comprised a single administration [221]
F.JurakI.KarnowskiH

doi: 10.1016/0003-2697(89)90164-4

However, no large-scale human clinical trials have confirmed these effects, so its use in people remains experimental and off-label
