Cloudy iced tea isn't harmful, but it's certainly not ideal when you want to enjoy a crisp, clear brew. Here's why it happens ...

Does boba tea have caffeine? Which options have the least caffeine? Below, we’ll dive into what you need to know before ...

Does white tea have caffeine? It’s an important question. Many of us want that little caffeine boost in the morning, but on the other hand, too much caffeine late in the day or in the evening ...

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

In particular, green tea contains catechins and caffeine. These may help promote ... Many commercial weight loss and fat-burning supplements have green tea listed as an ingredient.

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

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 ...

suggesting that theanine can reduce the negative effects of caffeine on sleep quality. The findings of these studies suggest that green tea may have beneficial effects on cognition and sleep ...