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Dysbiosis vs intestinal tightness Exposure to environmental factors can directly weaken the integrity of the intestinal epithelial barrier and alter the microbiome structure
Western style diet rich in fat and sugars alters the intestinal barrier in a way resulting in enhanced permeability and elevated endotoxin levels in the portal vein [104],[150],[227]
Oral supplements are usually prescribed to people who do not want to take injections or to those who are unable to absorb vitamin B12 from the gut
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