Quote (YoloSwag420 @ Nov 28 2016 05:37pm)
certain people have problems absorbing B vitamins (they only absorb 1% of the dose of b12 due to parietal cell dysfunction etc.) so they need those doses
as said above, theyre water-soluble and get excreted easily... thats why some people prefer timed release formulations
If they have the issue you're referring to then wouldn't they need b12 injections not just higher doses by mouth. Do you have a specific illness or disorder that benefits from very high doses of oral b12?