My son's first blood work was done when he was 3 and it came back with iron deficency and high B12, so doc. suggested iron suppliment and no multivitamins. At age 4 the blood work shows iron in good but low hemoglobin 106 g/l. B12 is still high 1206 pmo1/L. All other things are normal. We will see a specialist in couple of weeks. I am really concerned about B12.
Excess amounts of Vitamin B12 from food or supplements have not been associated with adverse effects. A Tolerable Upper Intake Level has not been determined due to the low toxicity of the vitamin. Thank you for your question.
Copyright 1994-2018MedHelp.All rights reserved. MedHelp is a division of Vitals Consumer Services, LLC.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.