Madison Park's beach is a prime source of Seattle's vitamin D intake.
Good news from the New York Times: "Given appropriate sun exposure in summer, it is possible to meet the body's yearlong need for vitamin D." Didn't know you could store up the D like a battery, did you? (Fun fact: it's actually a steroid hormone, not a true vitamin--if you get enough sun you don't need another source.)
The consulting physician on the article, Boston U's Dr. Michael Holick, suggests you take sun breaks "from 10 a.m. to 3 p.m. two or three times a week for 5 to 10 minutes." Put sunscreen only on your face, and--think Lady Gaga--maximize your skin exposure.
What's the big idea? Nutritionists have discovered that we aren't getting nearly the amount of vitamin D that we need. While a serious vitamin D deficiency has long been known to cause rickets, it's becoming more evident that chronic low levels of vitamin D can have serious health impacts as well.
Besides documented effects on bone health, Holick references studies that show a lack of vitamin D impacting multiple sclerosis, arthritis, type I diabetes, and immune response in general. Locally, the Fred Hutchinson Cancer Research Center has been researching vitamin D intake and colorectal cancer and breast cancer rates, and have also found that diet, geography, and lifestyle aren't good predictors of individual vitamin D levels; a blood test is the best way to be sure.
Here's the FHCRC line on vitamin D, what it does, how much you need, and how to get it....
Today about wraps up our sunny spell. Tomorrow afternoon we return to more conventional Pacific Northwest weather fare. Cliff Mass says, "On Tuesday a weather system will approach with a chance of showers later in the day. Then we switch into a cloudier, wetter pattern...but not too extreme." So if you have an "errand" to run, better get to it. And bring your camera.
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