Hi all, this is my first post but I've been following the forum for a while. I have been sick now for little over a year after a marathon run. Or actually I was similarly sick also ten years ago for two years but recovered. I have mostly PEM and exercise intolerance. I was also recently diagnosed with Lichen planus and my wife says I smell bad like an old alcoholic.. Any way, I just did the 23andMe and Nutreval tests. On the nutreval test the most alarming seems to be that succinic acid is below detection limit. Glutathione is the normal side. I had started Fredd's protocol couple of weeks before the Nutreval test so that may have had an impact on some of the values, like glutathione level. I did however stop all supplements one week before the test. Can the methylation protocol lift the succinic acid level? Or are there any supplements that can directly lift it? I appreciate if anyone can give their opinion.