Green tea is not naturally caffeine-free. Green tea contains an average of 29 milligrams (mg) of caffeine in an 8-ounce cup, but the amount can vary. Black tea ... teas often have more caffeine ...

Because of its naturally high caffeine ... does animal sources. While this isn’t a major concern for most healthy individuals, it may be best for people with low iron levels to avoid black tea ...

Both black and green tea contain caffeine, which stimulates the nervous system and encourages the release of feel-good ...

A cup of black tea is invigorating, but it's also a blank canvas for all kinds of flavors. We spoke with beverage experts to ...

Does black tea have similar proven health benefits and which ... Which of the two is right for you therefore mostly comes down to your personal taste and caffeine tolerance. The benefits of green tea ...

Teenager Titus Yan used to start his day by drinking a bottle of green tea (or two) in the morning, followed by bubble tea or ...

So when the lights appear to flicker or she sees an aura — sure signs a migraine is imminent — she says she’ll reach for ...

Personal trainer Tom Mansfield died following taking caffeine powder dose, which was the equivalent to 200 cups of coffee.

Here's everything you need to know to reap all the health benefits associated with green tea, according to a registered ...

Research has found that caffeine ... tea (Research shows that caffeinated green and black tea may improve blood pressure and cholesterol, both risk factors for heart disease. Some studies have ...