Her test is scheduled in 8 days. She stopped taking the B12 supplement 3 days ago and will not take anymore before the test. I also recommended that she stop here multivitamin (since it has some B12 in it) for the next 8 days.

She also takes the following:

Vitamin D3
Coconut Oil
Chromium
Potassium
Calcium
Magnesium
Vitamin K-2


So should she not being taking any of these above before the test and would any have any effect on the B12 test results?