You got the gist right, Miles. I can tell you've read up on it and aren't just shooting from the hip on this. Kudos for that. That is rare in forums and I
greatly appreciate it. I'll take a critic who does his homework any day over a supporter who regurgitates urban legends just because it supports his/her current practice (confirmation bias is a huge problem in forums).
Plus, that hypothesis is best which can withstand the most critical scrutiny. Knee-jerk defensive attacks against critical inquiry are suggestive of a weak hypothesis.
One minor addition--the cecum can also reportedly contain around 25% facultatively anaerobic microbes. (Comparative Study of Bacterial Groups within the Human Cecal and Fecal Microbiota
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC93255). A major function of these bacteria is apparently to ferment starch into short chain fatty acids (SCFA)
http://www.second-opinions.co.uk/images/man-gorilla.jpg. Since most raw Paleo dieters probably don't consume much starchy food, since you specified "
mostly anaerobic," and since even this 25% of the cecum bacteria are somewhat anaerobic, the gist of your point stands.
When I first learned about the "high" aspect of high meat, I suspected that it was due to beneficial bacteria, but since learning that most aerobic bacteria don't survive inside the body, I now suspect that something else produces this effect. Here is my speculative hypothesis #2:
- Fermenting meat produces glutamate (which is one of the elements that provides "umami" flavor)
- Glutamate is a precursor to the neurotransmitter GABA (and vitamin B6 is a key co-factor in this process -
https://en.wikipedia.org/wiki/Gamma-Aminobutyric_acid)
- GABA enhances a feeling of well-being (conversely, GABA deficiency can result in chronic anxiety)
I also suspect that GABA deficiency is a major problem in the modern world, given the increasing frequency of benzodiazepine use.
Do you have any thoughts on what produces the "high" aspect of "high meat"?