MMA test

[B12jab]

Hi I’ve been self injecting now alternate days for just over three weeks I have had a week break can I ask would it be too late to have MMA test please I’m wondering if I have a functional b12 deficiency I’m desperate for answers as to why I ha e felt so unwell my serum b12 at its lowest was 265 and last test November it was 280 however my serum folate has been a good number at 19 I have paid to have RBC folate check as I know this can be low even with a good serum folate would appreciate advice please regarding the MMA test

Thanks

[Ken-ard20]

Hope someone answers I want know the same as well for me

[fbirder]

A functional deficiency means

1. You have lots of B12 in your blood.

2. Not enough is getting into the cells.

The MMA test will tell you if 2. is correct.

To test for a functional deficiency you need to know that 1. and 2. are correct at the same time. So you need to do the MMA test while you have lots of B12 in your blood.