Vitamin D, in the form of both D-2 and D-3, is found naturally in some foods. The best natural food sources of vitamin D are oily fish, including mackerel, halibut, salmon, tuna and rainbow trout.
Cod liver oil is an excellent source, providing 1,360 international units of vitamin D in …...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.