People here who are taking B12, what number are you aiming for (pmol/L)? Here in Australia, the "ideal" level is over 180 pmol/L, yet in Japan it is 550. What level do you think it should be at, or are you aiming for personally? Would 800 - 1000 be ok? Also, I know that this test is not the most ideal because it doesn't actually test B12 in the cells and that your body is making use of and the number your B12 comes back as could and probably is lower than the number on the test. But because it is the most common test, it's one that most people here and the general population have access to, I'm referring to that.