doi: 10.1093/abt/tbac028 Knox EG, Aburto MR, Clarke G, Cryan JF, ODriscoll CM
Thymosin beta 15: a novel regulator of tumor cell motility upregulated in metastatic prostate cancer
There are several toxicity sites and lists where people became very ill on much lower doses -- in fact, B6 toxicity can come from doses lower than even 25 milligrams/day
B12 Intravenoso: International Prescribing Practices In some places, doctors use intravenous vitamin B12, called B12 intravenoso. These are given in a doctors office
Because the vitamin deposits into muscle rather than entering the vasculature immediately, intramuscular delivery produces a sustained release effect
Vegetarian and Vegans If you solely depend on a plant-based diet, there is an increased risk of vitamin B12 deficiency