Caffeine: How much is too much?

جون 14, 2026
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How much is too much?

You drink more than 4 cups of coffee a day

Even a little makes you shaky

You don't get enough sleep

You take medicines or supplements or have certain conditions

Cutting back on caffeine

The bottom line

Updated: February 21, 2025

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© 2026 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved.