from Dr-Rath-Foundation Website
As the paper describes, sun exposure has traditionally been the main contributor to vitamin D status in humans.
When sunlight reaches the
skin, vitamin D is produced in the body naturally. However, for
forty years now, to protect against ultraviolet (UV) radiation, a
known risk factor for skin cancer, government health authorities
worldwide have strongly recommended avoiding exposure to the
As such, it is plausible that sun avoidance and overuse of sunscreen may together have been responsible for a dramatic increase in the number of people with deficient or insufficient levels of vitamin D.
Indeed, a clinical review (Vitamin D Deficiency, its Role in Health and Disease and Current Supplementation Recommendations) published in 2017 in the Journal of the American Osteopathic Association examined this possibility and drew attention to the startling fact that around 1 billion people worldwide now have inadequate levels of this essential nutrient.
In fact, low sun exposure habits in regions of low solar intensity have been shown to constitute a similar major mortality risk factor to that of smoking.
Significantly, therefore, research now shows (Vitamin D and Chronic Diseases) vitamin D deficiency to be closely associated with chronic diseases such as,
In sharp contrast to
their publicizing of the dangers of smoking, however, government
health authorities have thus far chosen not to act on
Noting that eclampsia has been shown to be more prevalent during the winter, the paper's author suggests this may be due to a lack of sun exposure and points out that vitamin D deficiency in late pregnancy is known to be related to an increased risk of pre-eclampsia.
Due to the high worldwide
prevalence of vitamin D deficiency, the review therefore advises
that vitamin D supplements should be recommended in pregnancy.
For anyone who doubts that vitamin D deficiency is a serious global health problem, consider the fact that even in Australia - a country where people typically enjoy an outdoor lifestyle with plentiful sunshine - it has reached crisis levels.
Up to seventy percent of Australians are now believed to have deficient or insufficient levels of this nutrient.
In the United States and Canada, too, the problem is widespread. Three-quarters of U.S. teens and adults are now thought to be deficient in vitamin D, while two-thirds of Canadians have levels below those that research has associated with a reduced risk of chronic disease.
A similar picture has emerged in Europe, where blood levels of vitamin D are known to be low in up to seventy percent of the population.
Clearly, the world ignores this global health problem at its peril...