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People have plenty of questions about tea and the heart. Here are clear, practical answers to some of the most common ones. This information is general and is not a substitute for personal medical advice.
Is tea good for your heart?
Many large studies have found that regular tea drinkers tend to have a lower risk of heart disease and stroke. Tea contains flavonoids that may support blood vessel function, blood pressure and cholesterol. However, these studies show associations, and the benefits appear modest. Tea is best seen as one helpful part of a heart-healthy lifestyle.
Which tea is best, green or black?
Both green and black tea have been linked with heart benefits in research. Green tea is rich in catechins, while black tea contains theaflavins and thearubigins. The best choice is the one you enjoy and can drink without much sugar.
How many cups a day should I drink?
Studies often show benefits among people drinking about two to four cups a day. The right amount for you depends on your caffeine sensitivity, sleep and health. Ask your doctor if you have a heart condition or take medication.
Does adding milk cancel the benefits?
The evidence is mixed. Some small studies suggested milk might reduce certain effects, while others found little difference. A small splash of milk is unlikely to be a problem. Added sugar is a much bigger concern.
Is decaffeinated tea still beneficial?
Decaf tea still contains flavonoids, although the decaffeination process can reduce them somewhat. It is a good option for people who need to limit caffeine or want tea in the evening.
Are herbal teas good for the heart?
Herbal teas are not made from the tea plant, so they contain different compounds. Hibiscus tea has shown modest blood pressure benefits in small studies. Others, such as rooibos and chamomile, are pleasant caffeine-free choices. Some herbal teas can interact with medicines, so check with a pharmacist.
Can tea lower my blood pressure enough to replace medication?
No. Any effect of tea on blood pressure is small. Never stop or change blood pressure medication without talking to your doctor.
Are green tea supplements better than drinking tea?
Not necessarily. Concentrated green tea extract supplements have been linked to rare cases of liver injury and can interact with medicines. Brewed tea is a safer everyday choice. Talk to your doctor before taking any supplement.
Is iced tea as healthy as hot tea?
Home-brewed, unsweetened iced tea can be just as good. Many bottled iced teas, however, contain a lot of sugar and relatively few flavonoids, so read labels carefully.
Can tea cause problems for some people?
Yes. Caffeine can cause sleep problems, jitters or palpitations in sensitive people. Tea can reduce iron absorption from plant foods, and very hot drinks may irritate the throat. Some teas can interact with medications.
What else should I do for my heart?
Eat a diet rich in vegetables, fruit, whole grains and healthy fats, stay active, avoid smoking, limit alcohol, manage stress and sleep well. Have your blood pressure and cholesterol checked regularly.
Final word
Tea can be a delicious, low-calorie addition to a heart-healthy life. Enjoy it plain or lightly flavored, and talk to your doctor about any specific health concerns.
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