The recent Swedish study described here is not the first study to connect vitamin C and kidney stones.

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"Scientists agree that as the DRIs are revisited, vitamin D is one of the first recommendations that should be reconsidered, " says Patsy M.

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John Neate, chief executive of The Prostate Cancer Charity, said it was not the first study looking at vitamin D in the disease but a consensus on the benefits had not been reached.

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Tilly, who would have been a little larger than a baked bean at birth, needed bottle feeding special milk and vitamin supplements around the clock when she was first found.

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One of the better prospective studies done on vitamin D and heart disease followed subjects over time, measuring vitamin D levels and following them to see who developed a first incidence of heart attack.

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First of all, price or brand do not necessarily determine the quality of a vitamin supplement.

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If you are deficient in vitamin D or have osteoporosis, you may need higher doses, but talk to your doctor first.

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Britvic, which takes its name from its predecessor the British Vitamin Products Company, has started a consultation with staff, with the affected sites to close in the first quarter of next year.

BBC: Selection of bottles photographed from above