@sunsunsun said:
I learned this from Chris Masterjohn's article where he explains it has to do with CoA and if you are taking b6 it is a good idea to take b5.
After reading Sunsunsun’s comment on B5/CoA, as a likely kinetic bottleneck in cellular energy and side-effects on nerve cells, I decided to go deeper in the mechanism.
Here are the main points (excerpts) if you are taking HD B6 or trying to optimize the energy levels, when talking about interaction from some supplements like betaine (as a traffic controller) or the Choline-Egg-TMG Connection (role in cell energy & signaling).
Summary of the pathway
In short, B6 PLP acts as the accelerator pedal for creating cysteine. If you step on that pedal with 20–25 mg of PLP, you must dramatically increase the supply of Vitamin B5 (at a 2:1 ratio) to prevent the system from exhausting. The extra B5 safely captures the excess cysteine, escorts it into Coenzyme A production, and prevents the cellular energy depletion that triggers a neurological shutdown.
[image: 1786964093985-bottelneck-b5-coa.png]
Even before I even introduce the higher-dose B5 (200 mg), my setup was already highly defensive. The combination of TMG, Choline/Eggs, and periodic Methyl-B9/B12 creates a massive upstream buffer. It actively prevents a massive, sudden tidal wave of cysteine from hitting the B5 pathway all at once, while Inositol protects the nerve membranes.
Further details can be found on my forum to see how I manage and more, e.g.: “How I Manage Brain scrambling following admin issues” in order to block “the noise”, enhance alpha brain waves and synergize GABA-like effects when combining magnesium bisglycinate (1.3 g), L-theanine (200 mg), taurine powder (500-1000 mg).
NB1: You’ll need caffeine to go through the doc (10 pages docx), with references.
NB2: These references don’t go through when I post here on bioenergetic forum.