What Doctors Don't Tell You
But when researchers profiled the study group more carefully, they discovered that virtually all the women in the group were deficient in vitamin D.
The sun is the main source of vitamin D, but it can also be found in cod liver oil and in oily fish such as salmon and mackerel (Ann Rheum Dis, 2005; 64: 1217-9).
Maryon Stewart
Daniel Redwood DC
Tom Ferguson MD