Green Tea With Lemon: Can It Really Improve Digestion؟
- By Tahani Elghazaly
- Published
A squeeze of lemon can brighten the flavour of green tea. But claims that the combination settles an upset stomach, relieves bloating or significantly boosts its health benefits are not backed by strong clinical evidence.
The most intriguing finding comes from Purdue University, where researchers found that citrus juice helped protect green tea catechins — naturally occurring antioxidant compounds — during simulated digestion. Some of the strongest results involved mixtures containing 50% citrus juice, far more than people typically add to a cup of tea.
That distinction matters. Preserving a compound in laboratory conditions is not the same as demonstrating that the body absorbs more of it, much less proving that it improves digestive comfort. The experiment did not measure whether people felt less bloated or experienced fewer stomach complaints.
A separate clinical trial published in 2022 found that diluted lemon juice accelerated stomach emptying after a bread-based meal. However, it involved only 10 volunteers and tested lemon juice and black tea separately. It offered no direct evidence about green tea mixed with lemon.
For people who enjoy the combination, there is no need to abandon it. Regular brewed green tea is generally safe for adults, although it contains caffeine. Lemon's acidity and the caffeine in tea can also aggravate reflux symptoms in susceptible individuals.
The available evidence supports a modest conclusion: lemon may change how some green tea antioxidants behave during digestion, but the familiar drink has yet to demonstrate the digestive benefits often attributed to it.
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