Stop reading this and ...

... go out right now and buy yourself some Vitamin D3.

Most people in America are seriously vitamin D deficient or insufficient, Patrick Cox writes. The same is true for Canada and Europe, and the implications are staggering. Cox is a columnist for Agora Financial. His conclusions, he says, come from his job as a tech investment adviser, which requires that he survey thousands of the most recent scientific studies.

Simply put, unless you are one of the few people with optimal serum D levels, such as lifeguards and roofers in South Florida, you can cut your risks from most major diseases by 50 to 80 percent. All you have to do is get enough D. It also means we can significantly reduce both health care costs and the staggering national deficit by taking a few simple steps.

Sensible sun exposure and vitamin D3 supplementation would do far more for our national health than the current health care bill. Even better, the benefits to society could be achieved without spending hundreds of billions of dollars. If an “Army of Davids” took it upon itself to spread the word, they could achieve what government is apparently incapable of achieving.

You need to read his whole article, but here are some excerpts:

Optimal vitamin D serum blood levels, attained through sunlight or supplementation, dramatically reduce the risk of many diseases other than bone maladies. Many of the most serious are ameliorated by an astonishing 50 to 85 percent. These diseases include cancers, from breast and colon to deadly melanoma skin cancers. [Read the full article for an explanation of skin cancers.]

This is not the end of the list, though. The big killers and most expensive diseases respond similarly to adequate D. I’m talking about hypertension, cardiovascular disease, and stroke. So do type 1 diabetes, type 2 diabetes (to a lesser extent), rheumatoid arthritis, peripheral vascular disease, multiple sclerosis, dementia, autoimmune diseases, and apparently even viral diseases such as H1N1 and AIDS.

I predict that other diseases will also be linked to vitamin D insufficiencies as more studies are performed. Even conditions such as autism and schizophrenia may be directly related to prenatal or infantile vitamin D deficiency.

I take 2,000 IUs of Vitamin D3 a day, a level I got from a pharmacist. I've had only one test for Vitamin D, and that was ordered by a urologist. Here's what Cox recommends:

The NIH’s current recommended dosage for vitamin D supplementation remains basically unchanged since it was established to prevent rickets. In fact, the maximum safe dosage of vitamin D3, the preferred dietary form, is currently 2000IU. This is extremely unfortunate because it takes about a hundred IU to raise serum blood levels by 1 ng/ml in a healthy adult. To get into the optimal range, 40 to 60 ng/ml, one would therefore have to take 4000 IU daily. It would take even more if you were obese, are taking certain medications, or have one of a number of medical conditions that degrade or prevent the creation of usable D. The evidence, incidentally, is that 10,000IU is entirely safe.

You should talk to your doctor, of course, but most doctors I know don't talk much about vitamins. Vitamins weren't part of their training. Read Cox' article and decide for yourself.