Vitamin B12 Deficiency in Serum Versus Active B12 Testing
Standard B12 tests miss real deficiency because they measure mostly unusable B12.
Talia Adeyemi
Senior Writer
Talia Adeyemi
Talia Adeyemi is a senior writer at Your Lab Explained covering nutrient status. Based in Copenhagen, Talia has written for Your Lab Explained since 2021.
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