Thanks Jeff. I'm glad you've come out of the shadows to post.

The potassium level would vary from time to time and individual to individual, and the "normal" range just means that a larger percentage of people thought to be healthy are within that range. And it may relate to a good dietary (and/or supplement) potassium intake.

Also, he period of time the body draws on potassium heavily is quite short.

Bottom line: I don't think your potassium result proves anything in regard to a possible need for B12.

Regarding med's question about the burning feet. That is not a typical symptom, but even the "classic" symptoms are not really typical----the fact that they are thought to be causes even more people to go undiagnosed. People are damaged by B12 deficiency in so many different ways that it amazes researchers.

Anyway, it's good to cover the possibility!

rose