b12 vitamin vs injection Injections: What You Need To Know How B12 injections can boost

Grant, and C

Here is a revised and more accurate explanation of the reasons a UK GP surgery might refuse to give a B12 injection a day earlier than scheduled, incorporating the points youve raised and providing a more scientifically grounded perspective: 1

Treatment of Vitamin B12 Deficiency Thirty mcg daily for 5 to 10 days followed by 100 to 200 mcg monthly injected intramuscularly

Journal of Investigative Dermatology.

Be skeptical of specific numbers (e.g., a particular half-life in hours, or a specific oral bioavailability percentage) circulating on commercial or community sites these could not be located in peer-reviewed literature and directly conflict with the peer-reviewed consensus that no human trials of this compound have been conducted