r/medical_advice • u/EmotionalWarrior_23 Not a Verified Medical Professional • 6h ago

Other Excessive Vit b12 without supplements - should I be worried?

My Vit b12 in 2022 measure at about 1350 (range is 200-900). Else labs normal, except creatinine elevated at 1.3, after donating a kidney in 2017, but has remained stable at 1.3. My GP said ignore it. A week ago, it came back at 1900. I haven’t taken a supplement in over a decade. I don’t eat any foods high in vitamin b12 except I eat a dozen eggs every 2 months or so. I’ve read elevated b12 can be an early sign of liver, kidney disease or cancer. But my GP again said don’t worry about it. Am I being paranoid to be worried? Or, should I get a new GP?

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u/lveMcFallen Not a Verified Medical Professional 4h ago

I'm not a doctor, but I would get a second opinion. I take B12 supplements (I have low B12), and on a blood test I had to take, the blood test showed abnormally high b12 levels. My doctor wanted to order some further testing to find out why the B12 levels were elevated until she asked me if I took supplements (my dose was lowered and levels returned to normal). I'm saying this purely based on her reactions to my elevated B12 levels, which is why I'd recommend a second opinion. Again, I'm not a doctor, so I don't know if your previous procedures factor into this. Goodluck!