I see people doing Vitmain D and B12 test.
What about Retinol (A), Tocoferol (E) testing?
And what about B1, B2, B6, etc being tested?
Why is no one testing them but often there are suggestion that someone might be low in B1, B2, even B3, etc?
There are usually supplemented without testing
Is there any reason why not to take a serum Retinol or a serum B2 test for example? Or it is just status quo to test only D and B12?
What about Retinol (A), Tocoferol (E) testing?
And what about B1, B2, B6, etc being tested?
Why is no one testing them but often there are suggestion that someone might be low in B1, B2, even B3, etc?
There are usually supplemented without testing
Is there any reason why not to take a serum Retinol or a serum B2 test for example? Or it is just status quo to test only D and B12?