Does anyone know anything about low SigA levels and links with b12 deficiency please?

[Jo5454]

Hi…I’ve recently read an article, but can’t find it at mo! that low SigA levels along with high gastrin levels can indicate b12 deficiency.

It caught my attention as on 2 previous tests, a stool and a saliva test, the SigA was included and very low both times which says can give rise to infections,allergies and autoimmune issues.

I have an allergy that I carry epipens for, a milk intolerance showed on test and just get higher temperatures and become unwell if I reintroduce & often seem to react to things with no particular pattern, constant hayfever,ME diagnosis, thyroid issues on and off, so am wondering if the low SigA is more significant than I’ve realised and whether helping that will help all the other issues. Had never read links with b12 before…has anyone had SigA ever mentioned to them please or investigated it further?