B12 deficiency is one of the most common — and most under-diagnosed — nutritional issues in adults. It affects an estimated 6-15% of adults over 60, and even more if you count functional deficiency (where you have symptoms even though your bloodwork technically says you're "in range").
Most people who have B12 deficiency don't know it. They walk around for years dealing with fatigue, mood issues, tingling in their hands and feet, or brain fog — and they assume it's just aging, stress, or something else. When they finally get tested, the standard test often comes back saying they're fine even when their body is clearly telling them something is wrong.
This self-check will help you figure out where you fall on the B12 deficiency risk spectrum, based on the symptoms and risk factors that matter most. In about 60 seconds, you'll get a personalized result plus a clear recommendation for what to do next — including which tests to ask your doctor for and how to interpret the results.
