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Most absorption is limited by intrinsic factor, but a small percentage of a high oral dose can cross the intestinal wall through passive diffusion
However, the majority of the scientific literature remains preclinical, meaning most studies have been conducted in animal models rather than human clinical trials
Some compounders add inositol, B12, thiamine, or pyridoxine
Post-Bariatric Surgery and Malabsorption Syndromes People who have had bariatric surgery or have malabsorption syndromes cant absorb vitamin B12 well
Pro Tip: Use The Peptide Guides peptide dosing calculator to enter your vial size and target dose
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