Health

Study shines light on 'low-value' vitamin D tests

Doctors are ordering unnecessary, costly and invasive blood tests for children to detect vitamin D deficiency, when instead it would be better to take simple preventative steps to ensure children receive supplements of the ...

Oncology & Cancer

What to know about supplements and cancer

From vitamin A capsules to herbal teas and zinc tablets, dietary supplements come in all shapes and sizes. But are they a good fit for people with cancer?

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