Vitamin D... Panacea
Some consumers and doctors are becoming convinced vitamin D can help reduce the risk of a long list of diseases, despite a lack of gold-standard research proving it.
A growing body of research suggests that supplements of the so-called sunshine vitamin may reduce the risk of multiple sclerosis, diabetes and breast and prostate cancers.
But much of the research comes from observational studies rather than placebo-controlled trials -- the highest standard in health research. Such rigorous trials to prove vitamin D's preventive benefits are expensive, and since vitamins can't be patented, pharmaceutical companies have no financial incentive to do the research.
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- Spaniards headed to the polls Sunday for an unprecedented repeat election that aimed to break six months of political deadlock after a December ballot left the country without an elected government.
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- Panama Canal officially opens after $5.25B expansion
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- Iraqi city of Fallujah declared 'fully liberated' from ISIS
- A senior Iraqi commander has declared the city of Fallujah "fully liberated" from Islamic State group militants, after a military operation of more than a month.