Subtropical Island
Senior Member (Voting Rights)
For low ALP you might want to get a P5P/PLP (for vit B6) test done. Pyridoxal 5'-phosphate is a substrate for alkaline phosphatase
https://www.ncbi.nlm.nih.gov/pubmed/9536930
Thanks for reminding me about pubmed!
Looks like this is a good one to ask the doctor about next time I do go in as there are three things that could fit in my case but the most likely is still some sort of malnutrition (which would not be a surprise).
Just realised this is a public thread so will leave it there.