October 9, 2026, 6:31 pm | Read time: 4 minutes
Whether for breakfast, at the office, or in the afternoon, coffee and tea are daily companions for many people. Both offer more than just caffeine. These beverages contain numerous bioactive plant compounds and have been the subject of intensive research for years. Large observational studies suggest that regular coffee and tea consumption may be linked to better heart health, a lower risk of certain chronic diseases, and possibly benefits for brain health.
Coffee and Tea Both Considered Health-Promoting
Coffee is one of the most important sources of antioxidants in the Western diet. In particular, polyphenols such as chlorogenic acids may help influence inflammatory processes and protect blood vessels. A comprehensive review in the journal BMJ concluded in 2017 that moderate coffee consumption can be associated with various health benefits.1
Tea also provides health-relevant ingredients. Black and green tea, in particular, contain larger amounts of flavonoids, which are attributed with antioxidant and vascular protective properties. Scientists suspect that these plant compounds play an important role in the positive effects of tea on the heart and circulatory system.
Tea Shows Promise for Heart Protection
Cardiovascular diseases remain among the most common causes of death in Germany. According to a large analysis from 2024 with data from nearly two million people, those with the highest consumption of black tea had a 14 percent lower risk of dying from cardiovascular diseases. The greatest benefits were observed with about one and a half to three cups daily.2
The flavonoids in tea are considered a possible explanation. A 2021 review concluded that these substances support blood vessel function and thus may contribute to heart protection. “Studies have found a slight reduction in blood pressure through regular black tea consumption,” says nutritionist Nichola Ludlam-Raine to the British “Daily Mail.”3
However, coffee also generally fares well in studies on heart health. “Coffee contains polyphenols, particularly so-called chlorogenic acids, which have been shown to help protect the lining of blood vessels from damage,” says Ro Huntriss, dietitian and Chief Nutrition Officer of a weight loss platform. This can improve blood flow and slow the development of arterial deposits.
Coffee Has Advantages for Weight Loss
When it comes to weight management, coffee seems to have the upper hand. Several studies suggest that caffeine may temporarily increase energy expenditure and reduce hunger, thus aiding in weight loss. Additionally, black coffee is virtually calorie-free. A Finnish observational study also showed that people with higher coffee consumption tended to have less body fat and abdominal fat, as well as more muscle mass. However, preparation is key.4
“The problem arises when syrup, sugar, cream, or large amounts of milk are added,” says nutrition expert Ludlam-Raine. Then, an originally almost calorie-free drink can quickly become a very high-calorie meal. For black tea, the evidence of a direct impact on body weight is significantly weaker.
Ingredients and Effects of Black Tea
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Possible Dementia Protection from Both Beverages
In terms of brain health, coffee and tea are nearly on par. A study suggests this. The lowest risk of developing dementia was observed in people who consumed two to three cups of coffee or one to two cups of tea daily.5
How exactly the potential effects occur is not yet clear. “Tea contains numerous polyphenols, including flavonoids with antioxidant and anti-inflammatory properties, which may support brain and blood vessel health,” says Ludlam-Raine.
However, it is clear that individual beverages alone cannot prevent dementia. Regular exercise, a balanced diet, avoiding smoking, and mental and social activity are considered particularly important for brain health.
Also interesting: How the combination of coffee and tea in moderation affects mortality risk
Conclusion
There is no clear winner. The evidence slightly favors tea for heart health, while coffee may have advantages in weight management. Both beverages perform similarly well in potential dementia protection. Those who enjoy drinking coffee or tea can certainly consider them part of a healthy lifestyle–provided sugar and high-calorie additives remain the exception.