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Description
The Pernicious Anaemia Society notes this is recognised but not fully understood

So, if you take only folate, you might not know if you are low in vitamin B12, and if you take only vitamin B12, you might not know you are low in folate

Still on nb-UVB, he was told to take the 3 B vitamins but he took 1 mg FA daily plus B6 (100 mg) And B12 (1000 mcg)
Take medications that block B12 absorption
