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Using sun block long term is a death sentence
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Taka
2017-06-03 12:14:57 UTC
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Widespread vitamin D deficiency likely due to sunscreen use, increase of chronic diseases, review finds

Results from a clinical review find nearly 1 billion people worldwide may have deficient or insufficient levels of vitamin D due to chronic disease and inadequate sun exposure related to sunscreen use.

Results from a clinical review published in The Journal of the American Osteopathic Association find nearly 1 billion people worldwide may have deficient or insufficient levels of vitamin D due to chronic disease and inadequate sun exposure related to sunscreen use.

The study also found that 95 percent of African American adults may have vitamin D deficiency or insufficiency. Vitamin D variations among races are attributed to differences in skin pigmentation.

"People are spending less time outside and, when they do go out, they're typically wearing sunscreen, which essentially nullifies the body's ability to produce vitamin D," said Kim Pfotenhauer, DO, assistant professor at Touro University and a researcher on this study. "While we want people to protect themselves against skin cancer, there are healthy, moderate levels of unprotected sun exposure that can be very helpful in boosting vitamin D."

Dr. Pfotenhauer also said chronic diseases like Type 2 Diabetes and those related to malabsorption, including kidney disease, Crohn's and celiac disease greatly inhibit the body's ability to metabolize vitamin D from food sources.

Considered a hormone rather than a vitamin, vitamin D is produced when skin is exposed to sunlight. Vitamin D receptors are found in virtually every cell in the human body. As a result, it plays a wide role in the body's functions, including cell growth modulation, neuromuscular and immune function and inflammation reduction.

Symptoms for insufficient or deficient vitamin D include muscle weakness and bone fractures. People exhibiting these symptoms or who have chronic diseases known to decrease vitamin D, should have their levels checked and, if found to be low, discuss treatment options. However, universal screening is likely neither necessary nor prudent absent significant symptoms or chronic disease.

Increasing and maintaining healthy vitamin D levels can be as easy as spending 5-30 minutes in midday sun twice per week. The appropriate time depends on a person's geographic location and skin pigmentation -- lighter skin synthesizes more vitamin D than darker skin. It is important to forgo sunscreen during these sessions because SPF 15 or greater decreases vitamin D3 production by 99 percent.

"You don't need to go sunbathing at the beach to get the benefits," said Dr. Pfotenhauer. "A simple walk with arms and legs exposed is enough for most people."

Food sources such as milk, breakfast cereals, and Portobello mushrooms are also fortified with vitamin D. Dr. Pfotenhauer said supplements are a good option, as they are effective and pose few risks, provided they are taken as directed and a physician is consulted beforehand.

Research is ongoing to determine whether vitamin D deficiency has a role in multiple sclerosis, autoimmune disorders, infections, respiratory disease, cardiometabolic disease, cancer, and fracture risk.

"Science has been trying to find a one-to-one correspondence between vitamin D levels and specific diseases," said Dr. Pfotenhauer. "Given vitamin D's ubiquitous role in the body, I believe sufficient vitamin D is more about overall health. Our job as osteopathic physicians is to recognize those patients that need to be tested and treat them accordingly."

Currently, insufficiency is defined as between 21 and 30 ng/ml and deficiency is considered below 20ng/ml by the Endocrine Society.

SOURCE: https://www.sciencedaily.com/releases/2017/05/170501102258.htm
Taka
2017-06-03 12:17:04 UTC
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J Intern Med. 2016 Oct;280(4):375-87. doi: 10.1111/joim.12496. Epub 2016 Mar 16.

Avoidance of sun exposure as a risk factor for major causes of death: a competing risk analysis of the Melanoma in Southern Sweden cohort.

Lindqvist PG1, Epstein E2, Nielsen K3, Landin-Olsson M4, Ingvar C5, Olsson H6.

OBJECTIVE:
Women with active sunlight exposure habits experience a lower mortality rate than women who avoid sun exposure; however, they are at an increased risk of skin cancer. We aimed to explore the differences in main causes of death according to sun exposure.

METHODS:
We assessed the differences in sun exposure as a risk factor for all-cause mortality in a competing risk scenario for 29 518 Swedish women in a prospective 20-year follow-up of the Melanoma in Southern Sweden (MISS) cohort. Women were recruited from 1990 to 1992 (aged 25-64 years at the start of the study). We obtained detailed information at baseline on sun exposure habits and potential confounders. The data were analysed using modern survival statistics.

RESULTS:
Women with active sun exposure habits were mainly at a lower risk of cardiovascular disease (CVD) and noncancer/non-CVD death as compared to those who avoided sun exposure. As a result of their increased survival, the relative contribution of cancer death increased in these women. Nonsmokers who avoided sun exposure had a life expectancy similar to smokers in the highest sun exposure group, indicating that avoidance of sun exposure is a risk factor for death of a similar magnitude as smoking. Compared to the highest sun exposure group, life expectancy of avoiders of sun exposure was reduced by 0.6-2.1 years.

CONCLUSION:
The longer life expectancy amongst women with active sun exposure habits was related to a decrease in CVD and noncancer/non-CVD mortality, causing the relative contribution of death due to cancer to increase.

PMID: 26992108
DOI: 10.1111/joim.12496
Rejected Man
2017-06-08 22:25:53 UTC
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This person, Dr. Pfotenhauer is wrong. The optimal level is likely a good deal higher than the "group-think hive mind" is willing to admit. Milk, fortified denatured cereal products and mushroom with their vitamin D analog are poor vitamin supplements, IMO. So sunbath and take high dose oil-based vitamin D3 supplements and the added in some astaxanthin in doses well beyond those of 'nature'.

www.melanoma.org/find-support/patient-community/mpip-melanoma-patients-information-page/surprising-cause-melanoma
Rejected Male
2017-06-08 22:32:42 UTC
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Post by Rejected Man
This person, Dr. Pfotenhauer is wrong. The optimal level is likely a good deal higher than the "group-think hive mind" is willing to admit. Milk, fortified denatured cereal products and mushroom with their vitamin D analog are poor vitamin supplements, IMO. So sunbath and take high dose oil-based vitamin D3 supplements and the added in some astaxanthin in doses well beyond those of 'nature'.
www.melanoma.org/find-support/patient-community/mpip-melanoma-patients-information-page/surprising-cause-melanoma
Also, read the comments section for balance.

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