Young punks ping.
Soft Canadians ping.
I remember reading that a deficiency of vitamin E results in vitamin D oxidizing, thereby resulting in a deficiency of vitamin D.
Vitamin D ping!
Really, kids, and adults for that matter, should be spending much more time outside in the spring and fall.
I'd think it would be great if April and October were spring and fall breaks for school kids -- at least in the more southern states.
Vitamin D. From the Sun. But the cancer scares have instructed young America to limit Sun exposure.
Vitamin D is not a vitamin at all — in its active form it is the most powerful steroid hormone in our bodies.
Vitamin D isn’t even a nutrient! It comes from the sun, not from nutrition!
When human skin is exposed to sufficiently powerful ultraviolet (UV) radiation from sunlight, a form of cholesterol contained in our skin (“7-dehydrocholesterol”) is converted into the precursor of Vitamin D, called “cholecalciferol”. This is then converted by our liver into the inactive bulk storage form of vitamin D that blood tests measure (“25-hydroxyvitamin D”). Although Vitamin D is present in limited amounts in cod liver oil and some fatty fish (salmon, mackerel and tuna), it is essentially unavailable in metabolically useful quantities from dietary sources.
As we age, our skin gradually loses its youthful cholesterol and its ability to synthesize Vitamin D declines over time. Although it has not been widely studied, some reports indicate that by the age of 50, Vitamin D production has fallen to approximately 50% of its original rate, and by the age of 65 production will have fallen to just 25% of its original capability. And independent of age, the skin’s melanin pigmentation — either from natural genetic racial coloration or tanning adaptation — acts to absorb much of the sun’s visible and ultraviolet radiation. This skin darkening has the beneficial effect of protecting our skin from UV radiation damage, but at the expense of further reducing the skin’s rate and capacity for Vitamin D production. (Melanin is 99.9% efficient in absorbing the energy from ultraviolet light, converting it into harmless heat energy.)
I ran into this a while back, and I got to thinking about it, since I take 1000 IU Vit D a day. My sleep patterns have improved, so has, I feel, my memory.
I was thinking that computers have caused me to stay indoors too much, and I’m not getting the Sun’s effects.
I started taking supplements about 2 years ago, and have felt a lot better, and did not get the flu or colds since then, although I did get a sore throat and runny nose which lasted for 1 day.
I used to get several colds that lasted for a couple of weeks. Maybe it's the placebo effect, but I intend to keep taking the supplements.
If John McCain gets his way, you won’t be able to buy Vit. D or anything else without his say so!
Pop Quiz: Which D.C. Politician Wants to Takeover Your Vitamins?
http://www.freerepublic.com/focus/f-news/2464287/posts
BFLR
A ground-breaking study published in the March 2010 Journal of Clinical Endocrinology and Metabolism found an astonishing 59 per cent of study subjects had too little Vitamin D in their blood.I had the same problem, only I'm not, uh, in that demographic. Been taking D3 and Niacin (doctor said to), and feel better. Still fat though.
I take 50000IU twice a week.