Health Library topic
Nutrients
Vitamin D, B12, iron and ferritin, magnesium, omega-3 status — and the difference between adequate and optimal.
Biomarker guide
Ferritin
Ferritin reflects stored iron — and it is one of the clearest examples of a marker where being technically in range and being adequate are not the same thing.
5 min read
Article
Functional Medicine Blood Tests
Functional testing is not a different laboratory. It is a wider panel and a different interpretive standard — optimal ranges, pattern reading, and root-cause questions.
6 min read