I saw in another thread you mention for HCL production we need both the right nutrients, AND the right stimulation. What pice of the jigsaw does the stimulation? Is that the TMG?
The bitters stimulate the release. The TMG is a methyl group donor so it helps with production, not release. Methylation is required for about 4,000 reactions in the body, including stomach acid formation.
Also, are saunas good for sweating out toxins, or are they dangerous as we sweat out critical vitamins and minerals too?
Saunas are fine as long as you and your heart are strong enough for them. You will lose water of course and some electrolytes, so be sure to drink some spring water frequently to maintain hydration and electrolytes.