Hi Marty,

Don't EVER stop taking B12 again! And definitely aim for a level at the TOP of range, 900 to over the top, and keep it there. Forever! I didn't realize you had been that low. My level was 294 when I was dx'd B12 deficient, and I had some pretty substantial symptoms over a period of years. Even though it took many years before a doctor thought to check for it, I was lucky in that he realized that 294 (150-1100) was low enough to be causing me neurological symptoms. Not much different than your 316.

My opinion, based upon my personal experience and what I have read, is that your B12 has been TOO LOW and could definitely be contributing to your symptoms. When was the last time it was tested? 2004? Well, stick with it this time, and it wouldn't hurt to boost it to 2000-3000mcg daily, preferably methylcobalamin, until you are sure you are in the HIGH range. Then you can consider dropping it to 1000mcg as a maintenance dose forever (with a B12 test now and then to be certain you remain in the HIGH range).

Look forward to hearing your stool test results.

Cara