| http://www.w3.org/ns/prov#value | - The best source of vitamin D is oily fish such as salmon, herrings and sardines.There are plans to bring out mushrooms fortified with vitamin D by the end of the year, but nutritionist Rosemary Stanton says it would be easier and cheaper for people to simply take a quick morning walk.I am not advocating that people get sunburnt or that they do not take the sun-protection message seriously, but we
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