A daily cup of tea or a small piece of dark chocolate could significantly benefit heart health, according to new research from the University of Surrey.
The research has yielded new evidence that compounds called flavan-3-ols, naturally found in tea, cocoa, apples and grapes, may improve blood pressure and blood vessel health.
The effects were particularly notable in people with already elevated blood pressure.
In some cases, the blood pressure-lowering effects were comparable to those achieved with certain medications.
Every day foods could play an important role in cardiovascular health
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The findings suggest that everyday foods could play an important role in cardiovascular health.
The research, published in the European Journal of Preventive Cardiology, analysed data from 145 randomised controlled studies.
Researchers found that regular consumption of flavan-3-ols led to measurable reductions in blood pressure readings.
The study also found that flavan-3-ols improved the function of the endothelium - the inner lining of blood vessels.
This improvement occurred independently of blood pressure changes, suggesting these compounds provide broader benefits to the circulatory system.
The endothelium's health is considered vital for overall cardiovascular wellbeing.
Professor Christian Heiss, lead-author of the study and Professor of Cardiovascular Medicine at the University of Surrey, described the results as "promising".
"The findings are encouraging for those looking for accessible ways to manage their blood pressure and support their heart health through enjoyable dietary changes," he said.
He suggested incorporating small amounts of commonly consumed foods like tea, apples, dark chocolate, or cocoa powder into a daily balanced diet.
These foods could provide beneficial amounts of flavan-3-ols, particularly for those with higher blood pressure.
Professor Heiss emphasised these dietary changes could be "a valuable addition to a healthy lifestyle".
However, Professor Heiss cautioned that these findings, "although promising, require ongoing investigation".
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Regular intake of flavan-3-ols could lead to measurable reductions in blood pressure
GETTYThe research suggests that flavan-3-ols could complement existing health strategies rather than replace them.
Experts stress that these dietary additions should not be considered a substitute for prescribed medications or medical advice.
Instead, they represent a potentially accessible way for people to support their cardiovascular health through everyday food choices.
The study adds to growing evidence that certain compounds in common foods may offer significant health benefits when consumed regularly as part of a balanced diet.
