Medical disclaimer: general information, not advice
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The content on b12guide.com is general information. It is not medical advice, and it is not a diagnosis or a treatment plan.
Not a substitute for professional care
Nothing on this site can replace an examination, a diagnosis, or advice from a doctor or another qualified healthcare professional. Do not delay seeing a clinician because of something you read here. Do not start, stop, or change a prescription medicine because of this site. Using b12guide.com does not create a doctor–patient relationship.
Doses and supplements
Where we mention doses, they are general reference ranges taken from published sources, not instructions for you. Your own needs depend on your health, your test results, and any medicines you take, and should be set by a doctor or a registered dietitian. Supplements, including vitamin B12, can interact with prescription medicines, so tell your clinician and pharmacist about everything you take.
Lab reference ranges
Different laboratories use different reference ranges and units. The ranges on this site are general examples. Always read your result against the range printed on your own lab report, and ask your clinician what it means for you.
Emergencies
If you have severe symptoms, call 911 or go to the nearest emergency room. If you think someone has taken too much of a medicine or supplement, call Poison Control at 1-800-222-1222.
How we check our content
b12guide.com is written by our editorial team. We do not publish the names of individual team members. Every specific number, dose, and lab range is checked by a person against a cited primary source before it is published. Even so, medical knowledge changes, and we cannot guarantee that every page is complete or current. You use the information on this site at your own risk.
We link to outside sources so you can check our claims. We do not control those sites and are not responsible for their content.
If you have a specific question about your health, please talk to a qualified healthcare professional.