If you have a medical history as long as mine - you've probably had your fair share of dealing with "dieticians"
Don't get me WRONG
Lovely girls (they'll all women, for some reason) for the most part - but they're the people responsible for the "quality" of hospital food menus
Dieticians are NOT scientists, endocrinologists, medical specialists, general practitioners - or nurses
It might sound a bit harsh, but I see most "dieticians" as holding corn-flake packet qualifications
They are full of text-book responses - and "one-size-fits-all" solutions
I'm now confident - through experience - I can read my own body and know its needs better than any "qualified dietician" can
But I digress - and back to Grendal's point
I am short of a liver enzyme that stops me from storing vitamins B1 and B12
I was once injected with what should have been 30 years supply of B12
I became deficient, on a pathology test, after three weeks
My medical team have PRESCRIBED a daily "mega-dose" of vitamins B1 and B12To the other extreme - I carry a dangerous overload of vitamin B6 (inability to metabolise)
I cannot touch a multi-vitamin - or any B group mixture
I even have to avoid B6 rich foods, such as spinach
Australian's have obeyed all those warnings on exposure to the sun
Like myself, around half of Australians are D3 deficient
https://www.webmd.com/diet/guide/vitamin-d-deficiency#1I am ALSO on twice daily PRESCRIBED doses of D3
So it's the best specialist medical advice, I follow
Above "dieticians" and internet "wellness bloggers"