Consumer Reports tested popular coffees and found that caffeine can vary a lot.

Wondering if coffee or energy drinks are better for you? Discover their pros, cons, and the healthiest way to get your caffeine fix.

A standard 8-ounce cup of brewed coffee has about 95 milligrams of caffeine. Light roast coffees usually have more caffeine than dark roasts. Most healthy adults should limit caffeine intake to 400 ...

We tested the levels of caffeine and contaminants in brews from Dunkin', Folgers, Starbucks, and more. Some will wake you up—or keep you up—more than others. By Janet Lee Whether you drink coffee to ...

Whether you drink coffee to jump-start your day or just because you enjoy it, the habit has some real health benefits, including for your heart and brain. But too much caffeine—more than 400 mg per ...