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Vitamin D is mainly obtained by being in the sun. If you do not get enough vitamin D, your bones may be brittle and more easily broken. If you do not get enough vitamin D from sunlight, you may need to take supplements.
supplement, nutrient, medication, medicine, deficiency, calcium, bone, osteoporosis
Is this information reliable, based on scientific research?
Is it clear who developed the resource and how?
Is the information easy to understand and easy to use?
Rated on: 7/4/2018 8:30:50 PM
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