You will want a test result of 400 or higher on serum B12.
Or you can have an MMA test, which should be normal or low to indicate active B12 utilization.
Or you can have a homocysteine test which should be 8 or lower.
(some ranges go higher for normal, and that is controversial.)
It is not common to be low in B6. But the test does not distinguish P5P levels. Some people at PN board here do have reactions at 100mg a day of B6. So we tend to stay more conservative about it, for that reason.
Your vitamin seemed adequate to me. But don't rely on the magnesium being useful. See if the label distinguishes the type.
If it says Oxide alone or Oxide and chelate, assume none is really bioavailable to you. Most mixtures use oxide form.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.