The short answer is that it depends on which form of B12 you have
2001 in the Journal of Clinical Endocrinology & Metabolism, which tested the peptide in obese adults over 12 weeks
It is advised to avoid intake of alcohol while taking this medicine
Working with commercial organisations : to explore other forms of delivery which do not involve the use of a needle, but which still by-pass the digestive route (where the foundation of the problem lies) and resolve symptoms
Vitamin B 12 is present in animal products, such as meat, poultry, fish (including shellfish), and to a lesser extent, dairy products and eggs (1)
Symptoms of a Vitamin B-Complex Deficiency Vitamin B12 deficiency can cause a variety of symptoms, and they can vary depending on the severity and duration of the deficiency