...my b-12 was 550 and folates were 20 and I felt like s***! I am a pretty good sized ,outdoor type active guy, but shortly after this neuropathy took over I became a lump never moving from the easy chair. I am convinced that that b-12 level was way to low! I am now mowing my yard ( 2 acres) , tending our rose garden, feeding the dog and cat, and taking my lovely wife out to dinner and antique stores. Now that is a testimonial !....ps...ditto what Melodie said.