Cardiologists from Nanjing University in China analyzed data from 14 studies involving nearly a million participants and found that those who drink up to ten cups of black tea daily have a 16% lower risk of heart disease compared to those who do not consume tea.
Small Dose – Smaller Effect
A few cups a day still offer benefits, but significantly less—only about 5%.
The study focused on black tea without , which proved to be the most effective for heart health. It enhances vascular health and promotes better circulation.
According to the researchers, the results confirm that black tea can be an important part of primary prevention against cardiovascular diseases.
Tea with Milk – Foe or Ally?
The study authors did not specify whether adding milk affects the drink’s benefits.
However, two studies in the UK, where tea with milk is traditionally consumed, also demonstrated positive effects. This suggests that adding milk does not negate the protective properties of tea.
According to the British Tea and Infusions Association, residents of the UK drink about 100 million cups of tea daily. Now they have yet another reason to indulge in their favorite beverage.
How Tea Protects the Heart
The mechanism remains a mystery. Scientists speculate that polyphenols—natural antioxidants—play a key role by reducing inflammation and improving the elasticity of .
While green tea has long been considered “healthier” due to its higher antioxidant content and lower levels, recent studies show that black tea is equally beneficial.
How Much Tea Should You Really Drink?
Despite the encouraging results, doctors remind us that ten cups are not a standard for everyone. Excess caffeine can lead to insomnia or increased blood pressure.
The best option is 5-6 cups of black tea without sugar per day. This is a safe amount that allows you to reap the benefits without harming your health.
Conclusion from the Researchers
“Our analysis shows that regular consumption of black tea is associated with a reduced risk of heart disease. These results support recommendations to consume black tea for prevention,” the researchers noted in the journal Nutrition, Metabolism and Cardiovascular Diseases.
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