Does Sunblock reduce vitamin D synthesis?!


Question: Does Sunblock reduce vitamin D synthesis?
When I go hiking in the mountains in winter I always apply a good sunblock. Does this also reduce the suns ability to trigger vitamin D synthesis?

Answers:

Yes "new research has found that wearing sunscreen continuously can reduce the amount of vitamin D a person is able to make."

Reversing opinions is a touchy subject but from what I've read it seems to indicate that *if* your vitamin D levels are optimized, a person would have protection from sunburn & wouldn't get skin cancer but that may be theoretical.


Vitamin D3 is not a vitamin at all but a necessary hormone that effects the immune system, bones & nearly every aspect of health. Having low Vitamin D levels greatly increases risk of cancer, heart disease, diabetes, MS & being deficient can create or greatly exacerbate health problems. Many researchers claim that optimized vitamin D levels are more effective than a flu shot in preventing viral infections.

The prescription vitamin D supplements are the wrong type (ergocalciferol ). As warned by the National Institute of Health -

http://www.ncbi.nlm.nih.gov/pubmed/17023…

Luckily you can buy vitamin D3 (cholecalciferol) over the counter and the upper limits are extremely high. Current recommendations from researchers are for 35iu per pound - a 150# person needs minimum of 5250iu per day & the rda is 400iu. This amount is for minimal needs and does not account for depleted stores. March is when stores are at their lowest.

Vitamin D3 deficiency is becoming an epidemic. U.S. RDA are much too low. It is possible that upper atmosphere pollution is blocking the needed UVB light from the sun.

I also highly recommend a low carb way of eating to allow the body to regenerate rather than degenerate.


Vitamin D deficiency may contribute to the wide set of disorders associated with metabolic syndrome (syndrome X), as well as to PCOS. In a study published in 2004, the authors saw a 60% improvement in insulin sensitivity in healthy, vitamin D replete adults

http://www.womentowomen.com/healthynutri…

In northern latitudes (above that of Atlanta, Georgia) the sun is at too low an angle for half the year to provide sufficient UV radiation. Most people need to take vitamin D, especially seniors, as the ability to synthesize vitamin D in the skin declines with age.

With exposure to sunlight in the summer, the body can generate between 10,000 IU and 20,000 IU of vitamin D per hour with no ill effects. In addition, no adverse effects have been seen with supplemental vitamin D intakes up to 10,000 IU daily.

Always take your vitamin D with a fat-containing meal to ensure absorption.

http://www.drweil.com/drw/u/QAA400676/Mo…

Dr. Joe Prendergast, an endocrinologist /diabetologist has managed over 1500 diabetic patients and, in the last decade, not one of his patients has had a stroke or heart attack. Only one has even been hospitalized! His secret—50,000 units of Vitamin D3 daily. Dr. Joe further reports:

* Reversal of advanced coronary disease
* Reversal of advanced lung disease
* Cure of multiple sclerosis
* Cure of amotrophic lateral sclerosis
* Regression of rheumatoid arthritis
* Improvement in allergies
* Control of many cancers
* Reversal of osteoporosis
* Prevention of influenza
* Cure of depression & other mental disorders
* Hashimoto’s hyperthyroidism

In summary, the evidence for safety and remarkable efficacy of Vitamin D3 suggests that virtually ALL adults should probably take 50,000 units of D3 daily. This is certainly true for those with virtually any illness.

http://enews.endocrinemetabolic.com/2008…

http://www.msnbc.msn.com/id/4001172/


http://curezone.com/forums/fm.asp?i=1560…
http://articles.mercola.com/sites/articl…

Your vitamin D level should never be below 32 ng/ml, and any levels below 20 ng/ml are considered serious deficiency states, increasing your risk of as many as 16 different cancers and autoimmune diseases like multiple sclerosis and rheumatoid arthritis, just to name a few.


They found that the body does not reliably begin storing cholecalciferol in fat and muscle tissue until 25(OH)D levels get above 50 ng/ml (125 nmol/L). That is, at levels below 50 ng/ml (125 nmol/L), the body uses up vitamin D as fast as you can make it, or take it, indicating chronic substrate starvation—not a good thing. 25(OH)D levels should be between 50–80 ng/ml (125–200 nmol/L), year-round.


http://www.vitamindcouncil.org/health/de…



I think there was a thing in the paper last year where they say that it maybe did.




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