[acapesket]

Well.. effin’ D’oh!
Half of the country gets no sun October thru April.

[svcw]

Very interesting

[TheRhinelander]

Sunlight is not the only source of vitamin D.

[TigersEye]

Vitamin D ping

[entropy12]

Is’nt cod liver oil loaded with natural vitamin D?

[corkoman]

Did everyone get that? Not sure how much more foggy an article can get - low Vit D can be bad for you if you have bad genes. Sound familiar?

Get some sun - don't use sunscreen unless you will be in the sun for >15 minutes.

[Wonder Warthog]

Well, I don't know about "outcomes such as hip fracture, myocardial infarction, cancer, and death", as I've not yet suffered any of those, but I DO know that upping my D intake has pretty much entirely shut down my susceptibility to colds.

I used to have four or five a year, typically lasting a week or more. Since upping Vit D to 10K units daily a couple of years back, I think I might have had ONE, (and that mild). Since many of these colds resulted in sinus infections, Dr's visits, antibiotics, etc., that alone was worth it.

[brewcrew]

There are many cluster headache patients that are getting great preventative results by taking 10-20K IU vitamin D3 per day (along with other cofactors: fish oil, magnesium, calcium, zinc, vitamin K and boron). Upping the serum 25(OH)D concentration levels to between 60-110 ng/mL appears to be preventing cluster headache attacks in about 70% of the people who try it.

The part I don't understand is why it takes some as little as 48 hours to get relief, while it takes other several months (even taking loading doses of 50K IU once a week in addition to the regular 10-20K IU).

[BuffaloJack]

Vitamin D is a very important item. Too much and it decreases your life span; too little and it allows all sorts of maladies to appear.
And it all starts with cholesterol. Expose cholesterol to sunlight (UV) and it will spontaneously change in vitamin D (they don’t actually add vitamin D to milk they irradiate the milk with UV to make it). Vitamin D and phosphorus and calcium all need to be present to grow bones, but the same 3 items (Vit D, phosphorus and calcium) can also be used to make virtually all the steroids, pain killers, hormones and control chemicals your body uses to maintain itself. And to make matters even more confusing, nobody really knows how much is the right amount; ther are opinions, but they are only that, opinions.