In a new study of over 180,000 people—some who took multivitamins, some who didn’t—researchers saw the same number of deaths from cancer and heart disease in both groups, Reuters reports. Some small studies have shown that specific vitamins, not multivitamins, might protect against cancer or heart disease among older people, but they looked at undernourished people, not healthy adults. More than half of American adults take multivitamins, even though they are generally prescribed only fo those who need extra vitamins. A large clinical trial is underway that may confirm results.
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