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	<title>NutritionFacts.org &#187; vitamin D</title>
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	<link>http://nutritionfacts.org</link>
	<description>The Latest in Nutrition Research</description>
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	<itunes:summary>The latest in nutrition related research delivered in easy to understand video segments brought to you by Michael Greger M.D.</itunes:summary>
	<itunes:author>Michael Greger, M.D.</itunes:author>
	<itunes:explicit>clean</itunes:explicit>
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		<itunes:name>Michael Greger, M.D.</itunes:name>
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	<managingEditor>mhg1@cornell.edu (Michael Greger, M.D.)</managingEditor>
	<copyright>Copyright 2013 - NutritionFacts.org - All Rights Reserved</copyright>
	<itunes:subtitle>The Latest in Nutrition Research</itunes:subtitle>
	<itunes:keywords>nutrition, nutrition facts, diet, vegan, plant-based diet, healthy eating, nutritional data, cancer, cancer prevention</itunes:keywords>
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		<title>NutritionFacts.org &#187; vitamin D</title>
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		<title>Is Vitamin D3 Better Than D2?</title>
		<link>http://nutritionfacts.org/video/is-vitamin-d3-better-than-d2/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=is-vitamin-d3-better-than-d2</link>
		<comments>http://nutritionfacts.org/video/is-vitamin-d3-better-than-d2/#comments</comments>
		<pubDate>Wed, 13 Feb 2013 12:19:43 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
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		<description><![CDATA[<img width="460" height="200" src="http://nutritionfacts.org/wp-content/uploads/2013/02/NF-Feb13-Is-Vitamin-D3-Better-Than-D2-460x200.jpg?bdee94" class="attachment-size_460_200 wp-post-image" alt="NF-Feb13 Is Vitamin D3 Better Than D2?" title="NF-Feb13 Is Vitamin D3 Better Than D2?" style="margin:0 15px 15px 0;" />Vitamin D3, sourced from sunlight exposure, animal, and plant sources may be preferable to vitamin D2 sourced from fungi.]]></description>
			<content:encoded><![CDATA[<img width="460" height="200" src="http://nutritionfacts.org/wp-content/uploads/2013/02/NF-Feb13-Is-Vitamin-D3-Better-Than-D2-460x200.jpg?bdee94" class="attachment-size_460_200 wp-post-image" alt="NF-Feb13 Is Vitamin D3 Better Than D2?" title="NF-Feb13 Is Vitamin D3 Better Than D2?" style="margin:0 15px 15px 0;" />Vitamin D3, sourced from sunlight exposure, animal, and plant sources may be preferable to vitamin D2 sourced from fungi.]]></content:encoded>
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		<slash:comments>41</slash:comments>
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		<itunes:subtitle>Vitamin D3, sourced from sunlight exposure, animal, and plant sources may be preferable to vitamin D2 sourced from fungi.</itunes:subtitle>
		<itunes:summary>Vitamin D3, sourced from sunlight exposure, animal, and plant sources may be preferable to vitamin D2 sourced from fungi.</itunes:summary>
		<itunes:author>Michael Greger, M.D.</itunes:author>
		<itunes:explicit>clean</itunes:explicit>
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		<title>Take Vitamin D Supplements With Meals</title>
		<link>http://nutritionfacts.org/video/take-vitamin-d-supplements-with-meals/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=take-vitamin-d-supplements-with-meals</link>
		<comments>http://nutritionfacts.org/video/take-vitamin-d-supplements-with-meals/#comments</comments>
		<pubDate>Thu, 15 Dec 2011 13:00:03 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
		<guid isPermaLink="false">http://nutritionfacts.org/?post_type=video&#038;p=4907</guid>
		<description><![CDATA[Taking vitamin D supplements with food may be a cost-effective strategy to achieve optimum levels.]]></description>
			<content:encoded><![CDATA[Taking vitamin D supplements with food may be a cost-effective strategy to achieve optimum levels.]]></content:encoded>
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		<slash:comments>34</slash:comments>
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		<title>Resolving the Vitamin D-Bate</title>
		<link>http://nutritionfacts.org/video/resolving-the-vitamin-d-bate/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=resolving-the-vitamin-d-bate</link>
		<comments>http://nutritionfacts.org/video/resolving-the-vitamin-d-bate/#comments</comments>
		<pubDate>Wed, 14 Dec 2011 13:00:43 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
		<guid isPermaLink="false">http://nutritionfacts.org/?post_type=video&#038;p=4905</guid>
		<description><![CDATA[Why the current vitamin D recommendations may be too low, other expert recommendations may be too high, and 2000 international units a day may be just right.]]></description>
			<content:encoded><![CDATA[Why the current vitamin D recommendations may be too low, other expert recommendations may be too high, and 2000 international units a day may be just right.]]></content:encoded>
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		<slash:comments>16</slash:comments>
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		<title>How the Institute of Medicine Arrived at Their Vitamin D Recommendation</title>
		<link>http://nutritionfacts.org/video/how-the-institute-of-medicine-arrived-at-their-vitamin-d-recommendation/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=how-the-institute-of-medicine-arrived-at-their-vitamin-d-recommendation</link>
		<comments>http://nutritionfacts.org/video/how-the-institute-of-medicine-arrived-at-their-vitamin-d-recommendation/#comments</comments>
		<pubDate>Tue, 13 Dec 2011 13:00:20 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
		<guid isPermaLink="false">http://nutritionfacts.org/?post_type=video&#038;p=4903</guid>
		<description><![CDATA[The latest revision of the official vitamin D recommendations were based on the body's reaction to protect bone health, but what about the other three dozen affected organs?]]></description>
			<content:encoded><![CDATA[The latest revision of the official vitamin D recommendations were based on the body's reaction to protect bone health, but what about the other three dozen affected organs?]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/how-the-institute-of-medicine-arrived-at-their-vitamin-d-recommendation/feed/</wfw:commentRss>
		<slash:comments>15</slash:comments>
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		<title>The Difficulty of Arriving at a Vitamin D Recommendation</title>
		<link>http://nutritionfacts.org/video/the-difficulty-of-arriving-at-a-vitamin-d-recommendation/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-difficulty-of-arriving-at-a-vitamin-d-recommendation</link>
		<comments>http://nutritionfacts.org/video/the-difficulty-of-arriving-at-a-vitamin-d-recommendation/#comments</comments>
		<pubDate>Mon, 12 Dec 2011 13:00:34 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
		<guid isPermaLink="false">http://nutritionfacts.org/?post_type=video&#038;p=4901</guid>
		<description><![CDATA[People respond differently to the same level of vitamin D supplementation, making it difficult to formulate one-size-fits-all guidelines.]]></description>
			<content:encoded><![CDATA[People respond differently to the same level of vitamin D supplementation, making it difficult to formulate one-size-fits-all guidelines.]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/the-difficulty-of-arriving-at-a-vitamin-d-recommendation/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>Vitamin D Supplements May Be Necessary</title>
		<link>http://nutritionfacts.org/video/vitamin-d-supplements-may-be-necessary/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=vitamin-d-supplements-may-be-necessary</link>
		<comments>http://nutritionfacts.org/video/vitamin-d-supplements-may-be-necessary/#comments</comments>
		<pubDate>Fri, 09 Dec 2011 13:00:10 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
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		<description><![CDATA[To reach the circulating (25-hydroxy) vitamin D levels associated with the lowest overall mortality, one may need to take supplements, given data suggesting suboptimal production from sun even under optimal circumstances.]]></description>
			<content:encoded><![CDATA[To reach the circulating (25-hydroxy) vitamin D levels associated with the lowest overall mortality, one may need to take supplements, given data suggesting suboptimal production from sun even under optimal circumstances.]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/vitamin-d-supplements-may-be-necessary/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
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		<title>Vitamin D and Mortality May Be a U-shaped Curve</title>
		<link>http://nutritionfacts.org/video/vitamin-d-and-mortality-may-be-a-u-shaped-curve/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=vitamin-d-and-mortality-may-be-a-u-shaped-curve</link>
		<comments>http://nutritionfacts.org/video/vitamin-d-and-mortality-may-be-a-u-shaped-curve/#comments</comments>
		<pubDate>Thu, 08 Dec 2011 13:00:55 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
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		<description><![CDATA[Vitamin D deficiency may shorten one's lifespan, but getting too much vitamin D may also adversely affect longevity.]]></description>
			<content:encoded><![CDATA[Vitamin D deficiency may shorten one's lifespan, but getting too much vitamin D may also adversely affect longevity.]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/vitamin-d-and-mortality-may-be-a-u-shaped-curve/feed/</wfw:commentRss>
		<slash:comments>9</slash:comments>
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		<title>Is Vitamin D the New Vitamin E?</title>
		<link>http://nutritionfacts.org/video/is-vitamin-d-the-new-vitamin-e/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=is-vitamin-d-the-new-vitamin-e</link>
		<comments>http://nutritionfacts.org/video/is-vitamin-d-the-new-vitamin-e/#comments</comments>
		<pubDate>Wed, 07 Dec 2011 13:00:48 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
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		<description><![CDATA[The Institute of Medicine's conservative position on vitamin D is understandable given the history of hyped vitamin supplements (vitamin A, beta carotene, folic acid, vitamin C, vitamin E) that turned out worthless or worse.]]></description>
			<content:encoded><![CDATA[The Institute of Medicine's conservative position on vitamin D is understandable given the history of hyped vitamin supplements (vitamin A, beta carotene, folic acid, vitamin C, vitamin E) that turned out worthless or worse.]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/is-vitamin-d-the-new-vitamin-e/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
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		<title>Evolutionary Argument for Optimal Vitamin D Level</title>
		<link>http://nutritionfacts.org/video/evolutionary-argument-for-optimal-vitamin-d-level/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=evolutionary-argument-for-optimal-vitamin-d-level</link>
		<comments>http://nutritionfacts.org/video/evolutionary-argument-for-optimal-vitamin-d-level/#comments</comments>
		<pubDate>Tue, 06 Dec 2011 13:00:49 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
		<guid isPermaLink="false">http://nutritionfacts.org/?post_type=video&#038;p=4893</guid>
		<description><![CDATA[Should the vitamin D levels found in lifeguards be considered the norm for our species given the fact that we evolved running around naked all day in equatorial Africa?]]></description>
			<content:encoded><![CDATA[Should the vitamin D levels found in lifeguards be considered the norm for our species given the fact that we evolved running around naked all day in equatorial Africa?]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/evolutionary-argument-for-optimal-vitamin-d-level/feed/</wfw:commentRss>
		<slash:comments>10</slash:comments>
		</item>
		<item>
		<title>Vitamin D Recommendations Changed</title>
		<link>http://nutritionfacts.org/video/vitamin-d-recommendations-changed/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=vitamin-d-recommendations-changed</link>
		<comments>http://nutritionfacts.org/video/vitamin-d-recommendations-changed/#comments</comments>
		<pubDate>Mon, 05 Dec 2011 13:00:46 +0000</pubDate>
		<dc:creator>Michael Greger M.D.</dc:creator>
		
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		<description><![CDATA[The Institute of Medicine tripled their official vitamin D recommendation based on target blood levels that indicate a large percentage of the U.S. population is deficient.]]></description>
			<content:encoded><![CDATA[The Institute of Medicine tripled their official vitamin D recommendation based on target blood levels that indicate a large percentage of the U.S. population is deficient.]]></content:encoded>
			<wfw:commentRss>http://nutritionfacts.org/video/vitamin-d-recommendations-changed/feed/</wfw:commentRss>
		<slash:comments>53</slash:comments>
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