Everyone says NAC can make glutathione. Wrong. Evidence against this is staring right at you. As you can see here, my wife's GCLC gene is genetically slower. Thus, she cannot convert Cysteine Meet Dr. Ben Lynch and the Discovery That Changed Genetics Headaches suck. There are many reasons why one gets headaches. Some reasons: Low serotonin, high histamine, low glutathione, low folate, high oxidative stress, high aldehydes, low biopterin Dehydration is a major cause Toxicological mechanisms of gold nanoclusters in zebrafish embryos ScienceDirect Low Homocysteine? Not Good. Dr Lynch : Dr Lynch Breakthrough In Cell Defense book by Allan C. Somersall