Everything you need to know about caffeine

Everything you need to know about caffeine

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Everything you need to know about caffeine—including how to quit it

By Jeffrey Kluger

Editor-at-Large

If you’re like me, you drink more than your fair share of caffeine. The U.S. Food and Drug Administration recommends limiting your intake to 400 mg a day—a benchmark that’s easy to exceed with coffee shops like Starbucks serving up 20-oz. cups. Caffeine isn't necessarily bad, but you still may want to cut down or quit. Here’s what you need to know.

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Today's newsletter was written by Jeffrey Kluger and edited by Angela Haupt.

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