|-- FACT -- Vitamin D is not just a vitamin important for bone health and the prevention of rickets. It is a prohormone that is essential for regulating calcium metabolism, cell growth, cardiovascular dynamics, immune/inflammatory balance, neurological function and genetic expression.
Vitamin D Frequently Asked Questions
- Vitamin D and Ultraviolet Exposure
- Vitamin D is perhaps the single most underrated nutrient in the world of nutrition
- Vitamin D is produced by your skin in response to exposure to ultraviolet radiation
- The UVB rays of ultraviolet light (that generates Vitamin D in your skin) cannot penetrate glass. So you don't generate Vitamin D when sitting in your car or home.
- It is nearly impossible to get adequate amounts of Vitamin D from your diet. Ultraviolet exposure is the only reliable way to generate Vitamin D in your body.
- You would need to drink ten tall glasses of Vitamin D fortified milk each day to get minimum levels of Vitamin D in your diet
- People with dark skin pigmentation may need 6-10 times as much exposure as fair skinned people to generate the same amount of Vitamin D
- Sufficient levels of Vitamin D are crucial for calcium absorption in your intestines. Without sufficient Vitamin D, your body cannot absorb calcium.
- Chronic Vitamin D deficiency cannot be reversed overnight. It takes months of supplementation and exposure to replenish your Vitamin D supply.
- Sunscreens block your body's ability to generate Vitamin D by approximately 95%
- It is impossible to generate too much Vitamin D from ultraviolet exposure. Your body will self-regulate and only produces what is needed.
- Vitamin D is "activated" in your body by your kidneys and liver.
X-Rays -- These rays, emitted by the ends of the bulbs, are a form of radiation, and can be potentially hazardous.
"In modern fluorescent lamps, and tanning lamps, the accelerating voltages while operating are the line voltages, 120 to 240 VAC. At startup, to initiate the arc discharge, the (instantaneous) starting voltage can be several hundred volts. Electrons accelerated at these voltages produce photons with wavelengths greater than ~2 nm. These are easily absorbed by the glass tube, and do not present a hazard. This is, in short, a non-issue
- EMF’s (Electronic Magnetic Fields) Which are emitted by the magnetic ballast are cause for concern.
"The magnetic fields around a magnetic ballast are near-fields, ineptly described as "rays." To the extent that they might be of concern, that concern is about the same, or a bit smaller, than that associated with a curling iron, a house lamp, or an electric stove. In each of these, if there is a hazard it is extremely difficult to demonstrate. But it is quite clear that the EMFs associated with KBD’s Vitamin D appliance is not an order of magnitude greater than those found throughout ordinary homes. The D/UV appliance share’s the same technology found in many fluorescent products throughout the country.
- How much Vitamin D will I make.
An individuals ability for Vitamin D production in the skin by exposure to natural ultraviolet energy varies greatly. Geography, time of day and time of year, all contribute to the variations.
An individual choosing to use an artificial ultraviolet energy source, also experiences variations in the production of Vitamin D. Contributing factors include the aforementioned along with area of exposure, location of exposure, distance from source, time of exposure, dietary habits, and more.
The Vitamin D effective irradiance calculations of Our D/UV-F have been performed and compared with the Vitamin D action spectrum yielding an effectiveness spectrum. This indication confirms synthesizing process will occur during exposure to our D/UV-F.
Without the appropriate clinical studies, it is impossible to determine the amount of Vitamin D being produced. As these trials are completed, our information will be undated.
It is important to remember, the quantity of Vitamin D produced in the skin when exposing to Ultraviolet light is not an exact science.
There are many factors in the equation:
- SKIN TYPE: There are 6 skin types 1 through 6. 1 is albino, then progressively darker through type 6.The majority of the US population is ST 2 and 3.
- BODY WEIGHT: The larger the person, the longer it takes to produce Vitamin D. Vitamin D is fat soluble, so the more fat the more the Vitamin 'hides' from the production process. Most of our vitamin D requirement comes from exposure to sunlight. In a bathing suit exposure to about 15 minutes of sunlight on a beach in Cape Cod in June at noontime for a white 20 year old adult is Equivalent to ingesting about 20,000 IU vitamin D. Even though aging can reduce the amount of vitamin D the skin can produce by as much as 70 % in a 70 year old adult the capacity to produce vitamin D is so high that the elderly can still make enough in their skin from sun exposure
- Recommended Daily Allowance.
Unlike most other nutrients, there is no “Recommended Daily Allowance” or RDA, for vitamin D. Instead, the Department of Agriculture uses a measure called “Adequate Intake Value” based on what’s needed to keep bones healthy. The adequate intake value for people up to age 50 has been set at 200 IUs per day, (a typical daily multivitamin pill contains 400 IUs), but most experts now agree that while this may prevent rickets, the amounts should be raised. Last year, for example, the American Academy of Pediatrics doubled its recommendation for children, including infants, to 400 IUs.