I'm in the process of getting my B12 tested privately, but would like some advice.
The Thyroid UK website recommends the active B12 test (holotranscobalamin), and also recommends using Nutristasis (now called Viapath?) for testing. I emailed them re tests, and am looking to get tested:
1) Active B12 at £18
2) MMA at £96
3) THCY at £40
Are these tests enough? Also, are the prices reasonable? Like most people, my budget is very limited but am willing to do this for my health!
They are also asking for a signed referral letter from the GP. Is this a simple process? My GP refused to refer me to the late Dr Skinner (thyroid specialist), and it was hell getting that sorted out.
Would appreciate any advice.