Vitamin D for pain control and heart issues

I've been stressing the importance of vitamin D in the past to many, including my wife. My wife found this in a recent health insert to a local newpaper, by tow doctors:

PAIN CONTROL: A fascinating study from the Mayo Clinic published last month online (article was from June) in the journal Pain Medicine looked at vitamin D levels in people with chronic pain. They found that those patients who had low vitamin D levels required twice as much narcotic pain medication compared to those with normal levels. The vitamin D deficient folks also perceived their health as poor.  Another study from the Mayo Clinic in 2003 looked at the prevelance of vitamin D deficiency in people aged 10-63 with chronic pain syndromes like fibromyalgia and chronic fatigue--93 percent of them were found to be vitamin D deficient.

HEART BENEFITS: A study published last month in the journal Circulation looked at the impact of vitamin D blood levels on heart health in people with high blood pressure.  Participants in the study with low vitamin D levels were two times as likely to have angina, a heart attack. or heart failure and stroke compared to those with normal vitamin D levels.

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