A retrospective study from the 1930s, which traced schoolchildren well into adulthood, has found that those who ate plenty of dairy foods ended up living longer than those who didn't.

"The study looked at family diets and found higher intakes of both calcium and dairy, predominately from milk, cut mortality by a quarter," according to a report by the BBC.

The study involved 4,374 schoolchildren in the United Kingdom during the 1930s. The findings have been published in the journal Heart.

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Source: BBC