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 ...

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

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 ...

The leaves in decaf tea have been subject to a decaffeination process, which removes as much caffeine as possible.

Green tea is not naturally caffeine-free. Green tea contains an average of 29 milligrams (mg) of caffeine in an 8-ounce cup, ...

In this lab, students will determine the amount of caffeine in a beverage. Students will determine the retention time of pure caffeine. From this information, students will be able to identify the ...

While it may seem pretty standard for the average person to get a jumpstart on their day with a cup of coffee, for many ...

The caffeinated beverage market in the US has ‘changed dramatically’ over the past 10 years, according to a new survey.

4 at 6:05 a.m. Do you start your mornings with a potent dose of caffeine from a freshly brewed cup of Joe? Or do you prefer a slightly less caffeinated nudge from a warm and gentle cup of tea?

And the caffeine in many teas increases your ... EGCG-rich green tea extract or drank catechin-enhanced green tea lost a modest amount of weight (about 3 pounds over 3 months).

It's in coffee, chocolate, energy drinks, soda and tea. It stimulates your brain ... for the average person – that's roughly the amount of caffeine in four, 8-ounce cups of coffee.