Is 400 mg of caffeine a day too much?
400 milligrams of caffeine is right at the FDA's figure of 400 milligrams a day for healthy adults. Taking about 1,200 milligrams quickly can cause seizures, and pure caffeine powder makes that easy to reach.
General information, not medical advice. Check with a doctor or pharmacist before taking a supplement, especially if you are pregnant or breastfeeding, take any medicine, or are under 18.
The figures
| Amount checked | 400 mg |
|---|---|
| Answer | At the FDA figure |
| Daily ceiling | The FDA's figure of 400 milligrams a day for healthy adults |
Cautions and interactions
- Taking about 1,200 milligrams quickly can cause seizures, and pure caffeine powder makes that easy to reach.
- People who are pregnant, trying to conceive or breastfeeding should ask their clinician.
Quick answers
- Is 400 mg of caffeine a day too much?
- 400 milligrams of caffeine is right at the FDA's figure of 400 milligrams a day for healthy adults. Taking about 1,200 milligrams quickly can cause seizures, and pure caffeine powder makes that easy to reach.
- Is caffeine safe?
- Taking about 1,200 milligrams quickly can cause seizures, and pure caffeine powder makes that easy to reach. People who are pregnant, trying to conceive or breastfeeding should ask their clinician.
Sources
- US Food and Drug Administration
https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much
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