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The teeth of an Irishman who lived 4,000 years ago have given 'unprecedented' insight into the evolution of the human diet.

<p>Researchers at Trinity College Dublin have recovered remarkably preserved microbiomes&nbsp;from two teeth dating back 4,000 years, found in an Irish limestone cave. Genetic&nbsp;analyses of these microbiomes reveal major changes in the oral microenvironment from the Bronze Age to today. The teeth both belonged to the same male individual and also provided a snapshot of his oral health.</p> <p>The study, carried out in collaboration with archaeologists from the Atlantic Technological University and University of Edinburgh, was published today in leading journal&...

Too little sugar and too much acid can make traces of tooth decay difficult to find.

Researchers from Trinity have recovered remarkably preserved microbiomes from two teeth dating back 4,000 years, found in an Irish limestone cave. Genetic analyses of these microbiomes reveal major changes in the oral microenvironment from the Bronze Age to today.

A 4,000-year-old teeth has unlocked ancient secrets about human diets over the centuries. A recent study conducted by researchers at Trinity College Dublin delves into the ancient past through the examination of 4,000-year-old teeth, shedding light on the evolution of human diets over the centuries.