Extensive Study Links Black Tea Drinking to Lower Mortality Risk | Science and ecology | D.W.

New research reveals that drinking black tea may have health benefits and be associated with a moderately lower mortality risk, as detailed in a comprehensive review. study published Monday (29.08.2022) by the journal Annals of Internal Medicine.

Tea is one of the most consumed beverages in the world and is known to have effective substances to reduce inflammation. Previous studies from China and Japan, where green tea is very popular, also suggest health benefits. The new study spreads the good news for Britain’s favorite drink: black tea.

A risk between 9 and 13% lower

Experts from the US National Cancer Institute analyzed a large database of almost half a million adults in the UK. These people were asked about their tea drinking habits and followed for up to 14 years.

85% of the people studied said they drank tea regularly, and of these, 89% said they drank black tea. A wide variety of risk factors were considered, including health, socioeconomic status, smoking, alcohol consumption, diet, age, race, and gender.

Analyzes showed that higher tea consumption – two or more cups per day – was associated with a modest benefit: 9% to 13% less all-cause mortality compared to non-tea drinkers. The temperature of this drink, the addition of milk or sugar, or the consumption of coffee did not modify the results.

It’s not a study that can prove cause and effect

The association held for heart disease deaths, but there was no clear trend for cancer deaths. Researchers don’t know why, but there may not have been enough cancer deaths for an effect to show, said study leader Maki Inoue-Choi.

This research, based on observation of people’s habits and health, cannot prove cause and effect: “Observational studies always ask the question: is there something else about drinkers? tea that makes them healthier?” asks Marion Nestlé, professor of food studies at New York University.

“Enjoy Your Cup of Tea”

“I like tea. I think it’s a good drink. But it’s better to interpret these results with caution,” added Nestlé.

In the meantime, Inoue-Choi says there is not enough evidence to advise changing tea habits: “If you already drink a cup a day, I think that’s fine. And if you please, enjoy your cup of tea”, concluded the specialist.

YOU (ap, eurekalert.org, acpjournals.org)

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