How Much Coffee You Need Is a Genetic Trait

An international research team has found six new genes underlying our coffee-slurping ways.

The work, led by Marilyn Cornelis, a research associate at the Harvard T.H. Chan School of Public Health, found a total of eight genes, two of which had been identified in prior work by Cornelis and others. Two of the new genes were related to metabolism of caffeine and two were related to its psychoactive effects.

Source: Java in the genes

While the finding may not be hugely surprising, they should prove useful. Pinpointing a genetic link to caffeine reaction could allows medics and nutritionists to more accurately identify who can and can’t cope with the stimulant in their diet—and provide advice accordingly to target benefits and minimize health risk.

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