One study demonstrated that these symptoms decreased after just five weeks of taking 100mcg selenium a day (which would be the equivalent of about 1- 1.5 Brazil nuts)
Glutathione itself has minimal side effects at recommended doses
The early stages of gastric cancer are frequently clinically unconscious, and patients are typically diagnosed at an advanced stage
Summary While NAC is considered safe as a prescription medication, it can cause nausea, vomiting, and gastrointestinal disturbances, as well as mouth issues if inhaled
To take it, add the ampoule to the vial of the injection
(Source 2, 3) Because glutathione is a small peptide made from amino acids, it likely gets broken down in the digestive system instead of absorbed intact