Regarding vitamin D,
I recently read that in the latitudes of Canada, you can stand outside naked all day everyday between the months of October and February and not get an ounce of vitamin D.
Everything I have read states that the full benefits of vitamin D are not completely understood and the recommended dosage is everything from 4-500 UI's to 1000-3000 UI's a day.
Also, Vitamin D isn't quite like Vitamin C where your body uses a certain amount and then pees out what you don't need. Whatever you body needs, it will use and the rest is stored in the liver.
I have also read that the body may not know how to metabolize Vitamin D effectively in pill form, so naturally occurring Vitamin D found in food is better than popping some pills.
I actually havent heard anything about Vitamin D deficiencies being exaggerated, everything I have heard and read is that the full benefits arent completely understood.
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