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How Much Time Do You Need in the Sun to Get Enough Vitamin D?

Vitamin D is essential for the body to absorb calcium. One of the easiest ways to get the recommended amount of Vitamin D (RDA is 200 units for adults aged 19-50) is through sunlight.

So how much time in the sun is required to get your Vitamin D?

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amandasunly amandasunly 9 years
Another way to get Vitamin D is to take 3 tablespoons of cod liver oil a day, I think.
baltimoregal baltimoregal 9 years
Well, beemoney, that should tell you something. it's not true. this guy is full of it. BaltimoreGal "nothing to gain"
BeeMoney BeeMoney 9 years
First health advise I've seen to go in the sun, I wasn't aware of this.
ezliving_jim ezliving_jim 9 years
By the way, for those who are interested in reading up on the benefits of UV light, I recommend "Solar Power For Optimal Health" by Dr. Marc Sorenson and "The UV Advantage" by Dr. Michael Holick.
ezliving_jim ezliving_jim 9 years
I'll let the doctors at Dana-Farber Cancer Institute defend their study. I simply agree with them. I'm not the one you need to correct, baltimoregal. I think you are spinning the news because it conflicts with your beliefs. That's understandable. The results of the study were stunning and contradict the common wisdom of many doctors. The doctors at Dana-Farber Cancer Institute used artificial UV light (tanning lamps) in their study. Most people understand that tanning in the controlled environment of a tanning salon is better than toasting at the beach. I expect the doctors at Johns Hopkins have a high regard and respect for the doctors at Dana-Farber. Many of the doctors at Johns Hopkins graduated from Harvard Medical School. The Dana-Farber study confirmed what was suspected for a long time; the root cause of skin cancer is genetic. The study identified the p53 protein, "a protein known as the "master watchman of the genome" for its ability to guard against cancer-causing DNA damage has been found to provide an entirely different level of cancer protection: By prompting the skin to tan in response to ultraviolet light from the sun, it deters the development of melanoma skin cancer...." "The number one risk factor for melanoma is an inability to tan; people who tan easily or have dark pigmentation are far less likely to develop the disease," says the study's senior author, David E. Fisher, MD, PhD, director of the Melanoma Program at Dana-Farber and a professor in pediatrics at Children's Hospital Boston. That's a clear, straightforward message! If one has a defective p53, he is more likely to develop skin cancer. Tanning stimulates p53 and protects against skin cancer. Of course, those with a defective p53 shouldn't tan and nobody should sunburn. The key is moderation. This study also may explain so-called "tanning addiction." "Even as p53 is causing skin to tan during sunlight exposure, it may also affect neuronal circuits," Fisher says. "These proteins may provide an explicit link between the regulation of tanning and of mood." Baltimoregal, my tanning salon is in Anne Arundel County. Your first tanning session is free. Peace.
julieulie julieulie 9 years
ezliving -- I fail to see anywhere in the article where it specifies that using a tanning bed is healthy. It is, indeed, healthy to expose yourself to natural light and to, on occasion, tan outside. When it comes to other cancers (colon, prostate, etc) there is a correlation between sunlight and protection from the diseases (i.e. there are significantly greater cases of these cancers in northern latitutes as opposed to southern, in a gradient that does indicate it is sunlight-related), but this only relates to natural light. Tanning beds do nothing but increase the chances of melanoma and should never be used.
baltimoregal baltimoregal 9 years
Well, being that you own a tanning salon, I can see why you'd like to believe this but I don't believe this for a second. I work for and see doctors at Johns Hopkins and have heard no such information. In fact, from what I read FROM THE INSTITUTE'S ACTUAL PAGE at the link you gave is total misinformation. What they were doing with this study was trying to find out why people who don't tan are more likely to get skin cancer. Believe what you want to believe but don't be spreading lies about serious things like cancer risk and people's health!!! And I will correct you every time you post this misinformation.
ezliving_jim ezliving_jim 9 years
Depending on your skin type, 1 or 2 sessions in a tanning bed will process all the healthy vitamin D3 a human body can use. Also, the doctors at Harvard medical School's Dana-Farber Cancer Institute concluded in a recent medical study that tanning protects against skin cancer. Moderate tanning is healthy behavior. Dermatologists have been misleading people forever. Link to Dana-Farber Cancer Institute Study: http://www.dana-farber.org/abo/news/press/2007/guardian-of-the-genome-protein-found-to-underlie-skin-tanning.html Don't sunburn. Always protect your eyes from UV light. Wear FDA approver eyewear when tanning and sunglasses outside.
baltimoregal baltimoregal 9 years
Well, being that I'm fair and have a family history of skin cancer (so I wear super-high sunscreen and avoid it as well) and don't drink milk... My doc took a blood sample and found that I am extremely deficient in Vitamin D! I've been taken 1,000 mgs a day ever since. The RDA is currently 400 from what I've heard, not 200, but since it has shown to have the aforementioned effects on cancer as well as on bone density, the US Govt will raise it to 1,000 mgs sooner or later. 1,000 is a perfectly healthy range and well below any possible toxic levels. So make sure you're getting 400-500 mgs of Vitamin D a day, ladies- prevent cancer and keep those bones strong. My Johns Hopkins Internist knows her stuff, after all. "Save the makeup, save the world..."
julieulie julieulie 9 years
Just curious, but where did you find this data? I'm a Ph.D. student in oncology and I've had to study Vitamin D and its interactions with beta-catenin, and 10-15 minutes 3 days/week is significantly less than what my particularl institution considers to be the minimum amount necessary. Furthermore, Vitamin D has been shown to decrease cancer, but in order to reap the anti-cancer benefits of Vitamin D, one requires a minimum of 30 minutes of daylight 7 days per week (but wear sunscreen of course!).
GreenSkittlesGal GreenSkittlesGal 9 years
I've always wondered -- do the rays from tanning beds count? Most people I know work in offices until dark and so many of us tan once a week...
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