This ancient beverage does more than hydrate—it’s packed with antioxidants and compounds that boost your health, focus, and ...

Some say the best time to drink tea is at night, but that’s only if the tea doesn’t have caffeine. Learn which teas to drink ...

Although caffeine is generally safe in low-to-moderate amounts, high levels of consumption may lead to unpleasant and even dangerous side effects. Coffee and tea are healthy beverages. However ...

In particular, green tea contains catechins and caffeine. These may help promote weight loss by increasing the number of calories you burn daily (energy expenditure) and boosting fat oxidation ...

The amount of caffeine in Teavana teas can vary depending on the type of tea and the brewing method used. Black teas have the highest caffeine content, followed by green teas, and then white teas.

It contains the highest amount of caffeine among all teas 40 to 70 mg in each cup. It has a kind of stimulating effect, and it may be quite difficult to get to sleep after taking it (if it's ...

While the “caffeinated” label on certain tea products is self-explanatory, there’s much confusion over decaffeinated vs. caffeine-free tea. There’s a difference between the two descriptors.

L-theanine is also present, in lower concentrations, in black tea. There’s less research on the effects of coffee on stress, but researchers have found moderate to high amounts of caffeine are ...

This capability opens the door for a range of consumer-tailored products, from low-caffeine teas for those seeking a gentler experience to high-caffeine varieties for a stronger, more invigorating ...

Numerous studies have shown that coffee and tea—both of which are high in caffeine—may significantly decrease iron absorption. One study from Korea published in 2023 reported that drinking three cups ...