Episode 7 Part 2 continues directly from Part 1 and turns MTHFR from a confusing gene label into practical decisions you can use. We walk through homocysteine as a pathway signal, why observational associations are not the same thing as cause, and what randomized trials taught us about lowering homocysteine versus improving real world outcomes. You’ll also learn what common lab terms mean in plain language, including serum B12, serum folate, and RBC folate, and why each test gives a different kind of picture. From there we translate micrograms and kilograms into normal food and bodyweight anchors, then bring in the brain layer with neurotransmitters, methylation, and gene expression kept in proportion. ADHD is addressed as an applied example without making it the headline. We close with a detailed, repeatable protocol focused on labs in context,  ...