Risks and Side Effects While generally safe, vitamin B12 injections can have side effects or risks, such as: Mild pain, swelling, or redness at the injection site Dizziness, headache, or nausea Allergic reactions (rare) Hypokalemia (low potassium levels) in individuals with severe deficiency undergoing treatment People with allergies to cobalt or who have Lebers disease should avoid B12 injections unless specifically advised by a doctor
You can also send us a message via the website Live Chat for q much faster response
Senior Principal Research Fellow, SAHMRI None 1-2 Three or more Listen to expert interviews
Oral Administration Most peptides cannot survive oral delivery the sequential barriers of stomach acid, intestinal enzymes, and first-pass liver metabolism degrade peptide bonds before they reach systemic circulation
If you have questions for me or comments about the podcast or guests or topics that you'd like me to cover on the Huberman Lab podcast, please put those in the comment section on YouTube