Caffeine is safe in moderate amounts, but excessive intake, especially from supplements or in children, can pose serious ...

There’s evidence the effects of caffeine in a cup of tea are enhanced by an amino acid it contains, called L-theanine, if it is drunk regularly. The research finds “L-theanine may interact ...

As the old saying goes, sometimes too much of a good thing can be bad. But what about when it comes to coffee?

That’s the amount in about one or two cups of brewed coffee or three or four cups of black tea. You may be able to handle more or less caffeine. People can have different reactions to the drug.

But tea isn’t just herbs and water. It contains caffeine, a stimulant that affects kids differently than adults. While adults can handle small doses, caffeine in tea can harm a child’s ...

A new large-scale study published in the June 2007 issue ... examined the relationship between coffee, tea, caffeine intake, and uric acid levels and found that coffee consumption is associated ...

Baking soda, which is basic on the pH scale, will neutralize ... keep in mind that tea naturally contains about one-third of ...