Many people notice an increase in energy and overall well-being shortly after receiving their injection, typically within 24-72 hours
You should contact your GP if: You have been found to have elevated B12 levels on blood tests, particularly if levels exceed 1000 ng/L (approximately 740 pmol/L, though laboratory reference ranges vary) and you are not taking high-dose supplements You develop new symptoms after starting B12 supplementation, including persistent skin rashes, significant gastrointestinal disturbance, or unexplained symptoms You have underlying liver disease, kidney problems, or blood disorders and are considering B12 supplementation You are taking B12 supplements without medical supervision and have not had your levels checked, particularly if taking doses exceeding 2000 micrograms daily You experience symptoms that might indicate underlying disease, such as unexplained weight loss, persistent fatigue, jaundice, or abdominal swelling Call 999 or go to A&E if you develop severe allergic reactions following B12 injections, including difficulty breathing, facial swelling, or widespread rash, as these may indicate anaphylaxis, though this is extremely rare
Shipped quickly and I am super please with everything I had hit a plateau on my weight loss journey and was looking to change things up
This plan starts with a loading phase and then moves to maintenance therapy
Potential Benefits & Side Effects What preclinical literature describes
Others who are more likely to be deficient are smokers, alcoholics and anyone with digestive disorders, such as Crohns disease or celiac
