How does gut flora survive on a zero carb diet if one only eat meat and fat, no eggs or dairy, and doesn't take probiotics?
Dr. Art Ayers author of the blog "Cooling Inflammation" has a new blog post writing about gut flora and soluble fiber 29 June 2011. He states that Soluble Fiber in Meat is also Polysaccharide
That would depend on the particulars of the zc diet and perhaps other individual factors. If it is the modern variety, the kind that Stefansson ate at the Bellevue study (1), then it can cause some serious die off and mircrobial constituent changes (2).
The problem is this: Stefansson goes and lives with native peoples of the Arctic. He eats and lives by their ways and survives. He comes back and embarks on an eating plan for Bellevue that does not represent the native diet, so far as I recall. It's only what he thinks is important from the traditional diet (ie. all meat), not the way in which it was eaten. No raw or stinky fish, fermented oil or sorrel was eaten at Bellevue to the best of my knowledge. He stays in good health for a year. But what does that tell us? Not much really, as it is not really any sort of traditional HG diet eaten for a lifetime. Look at what happened to the gut flora of these men after just a few days. It would be helpful to know if traditional carnivorous peoples had diminished microflora numbers. It seems unlikely considering their liberal ingestion of microbial foods.
What kind of zc diet are most people in our age eating? It is one like Stefansson's; or worse, it is all muscle meat. It downplays organs, raw meats, fermented foods and the importance of some plant foods in the diet. The traditional HG diets that were carnivorous appear to play up organs, raw foods and fermented foods. They went to great pains to preserve what plant foods they had available to them. IOW, they did not fear a few carbs as many people desperate to lose weight do today.
If we look at the new fad of some people encouraging zc pregnancies, what might that mean to the health of offspring, who are dependent upon their mother's microflora in the first weeks of life? If gut dysbiosis is indeed implicated in neurological problems, and if zc promotes the destruction of beneficial microbes, then this is a potentially dangerous experiment if not approached from a traditional health perspective. A healthy diet needs to carry one from birth to healthy reproduction at the very least.
Satya - so true on ZC pregnancies. The more I read the more I realize how important gut flora is and that starts with the mother. Gut and Psychology Syndrome is a fascinating book.
The latest disturbing thing I heard on a podcast is that candida and other fungi can supposedly live on ketones.
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