Key Takeaways Bariatric surgery significantly alters how well your body can absorb vitamin B12 Being deficient in vitamin B12 over an extended period can lead to irreversible damage Finding a supplement with a vitamin B12 dose that meets your needs after bariatric surgery is essential Vitamin B12 deficiency is common after bariatric surgery and, if not corrected, can cause serious complications to your red blood cell production, cognitive health, and nervous system
[PMID: 22950504] PubMed record related to this compound for laboratory literature review
I recommend: at least 2,000 mcg (g) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement taken on an empty stomach or at least 50 mcg daily of supplemental cyanocobalamin or a serving of B12-fortified foods three times a day, each containing at least 190 percent of the Daily Value listed on the nutrition facts label Those over 65 years of age should take at least 1,000 mcg (g) cyanocobalamin every day
Consult a doctor to understand if you are eligible for the injections
What are the factors which affect absorption
Prolonged deficiency allows more extensive damage to accumulate, particularly to the nervous system, which requires longer to repair