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What are the risks of oolong tea? continued...
Caffeine can also cause complications for people with:
- Anxiety disorders
- Bleeding disorders
- Irritable bowel syndrome
- High blood pressure
Pregnant women should limit themselves to no more than three cups of tea a day since excess caffeine can cause problems such as premature birth and low birth weight.
For people with iron deficiency, drinking tea can interfere with the body's absorption of iron. Also, studies show that pregnant women who regularly drink oolong tea may have lower levels of folate, which is associated with higher risks of birth defects.
You should not drink oolong tea with other stimulants such as amphetamines or ephedrine. Doing so could cause serious heart problems. The same is true with some medications used to treat depression or asthma.
Avoid oolong tea if you take blood-thinning medications. Also avoid oolong tea if you use herbs or supplements that slow down blood clotting, such as:
Always discuss your use of supplements and other alternative medicines with your doctor. And remember that supplements are not regulated by the FDA.