Most long-term protocols settle at 12 mg per day because the doseresponse curve plateaus
Unfortunately, its also one of the vitamins that people are most likely to be deficient in, especially if they are vegetarian or vegan, are over 50, or have conditions that affect absorption
This is actually one of the more common causes of high vitamin B12 levels
News Release November 01, 2017 Gummies Are Most Likely to Fail Testing in Review of Multivitamins -- Best and Worst Multivitamins Identified by ConsumerLab Testing White Plains, New York, November 1, 2017 Multivitamin/multimineral supplements are among the most popular supplements, with many consumers relying on them to provide nutrients they may not get from their diets
Vitamin B12 can be found in vitamins or animal products, so why choose an injection over these other ways