I don't think it's either temperature or sunshine that is the big determinant of IBD incidence in North-South comparisons- but rather, exposure to parasites such as helminths (microscopic worms), which have evolved an immune modulating effect on their host. Dewormed populations have (relatively) high incidence of IBD as well as allergies and auto-immune diseases in general, while societies that have not been dewormed have very low incidence. It is just coincidental that Northern countries tend to be developed/de-wormed while many southern ones are still developing and non de-wormed, but when you look more closely you can see the actual breakdown. Thus, for example, in Israel most of the population has a fairly high incidence on par with Western Europe and North America while Bedouin have a low incidence. Ethiopian Jews have a very low incidence when they arrive in Israel but later develop it. It is not ethnic or racial, because once immigrants from non de-wormed societies move- whether within a country or via emigration- to live a de-wormed life, they start to get auto-immune diseases. However, re-worming- eg using TSO- doesn't seem to have nearly the punch as having had the worms all along from childhood- but it does help. I tried TSO for some time and it dampened my UC and concurrently cured me 100% of annual hay fever, but the dampening was insufficient to justify the huge expense of the TSO because I was not getting full remission.
Pancolitis >20 years, allergic to all 5ASAs
Tried everything under the sun (natural and alternative)
Some partial success with TSO but was too expensive to keep up
Currently Remicade and lots of probiotics, tapering pred again, maybe surgery this year
Post Edited (Probiotic) : 2/17/2009 2:23:26 PM (GMT-7)