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  • HOW does one figure this out??? suddenly have very HIGH B12 plus am homozygous for FUT2 rs492602 and rs602662. But...I had symptoms of LOW B12 (numbness in fingers, easy numbness in legs)...all which went away with Ben Lynch's combo of adenosyl and hydroxy B12. So to me, the fact that those symptoms improved implies my high B12 is from my methyl mutations of MTRR, MTHFR 1298 and COMT, not the FUT2. HOW does one figure out what is causing this??

    P.S. I had to stop the adenosyl and am only on hydroxy--the adenosyl knocked my B12 even higher.

    - 8 years, 2 months ago

    • RH2178  

      Have you had your methylmalonic acid levels checked? This could help indicate whether B12 is being taken up by your cells and not just remaining in your bloodstream.

      - 8 years ago.  

    • HG2553  

      that's a...need to collaborate with some specialists thing. More than genetics can affect those levels, and serum and cellular levels can be different, also I've noticed that some times a high xyz level and a low xyz level can sometimes have similar symptoms. Iron is also in the mix.

      - 8 years, 2 months ago.