In addition to several classical drugs, a large number of dietary interventions and dietary/nutritional supplements, such as amino acids, probiotics, and plant-based extracts, have been tested or proposed for the treatment of long COVID, due to the usually good accessibility, affordability, safety, and easy application of the respective dietary/nutritional supplements [132]
Sequence and product ambiguity For several commercial bioregulators, the exact amino-acid sequence cited by vendors is inconsistent across sources, and materials sold as research chemicals are not manufactured to pharmaceutical standards, verified for identity, or subject to independent quality control
Lecithin Powder (non-GMO): The liposomes in ReadiSorb Glutathione are derived from non-GMO lecithin
Coverage for off-label use is challenging
Simadibrata DM, Syam AF, Lee YY