5 doctors weighed in:
How much caffeine can I take before I overdose?
5 doctors weighed in

Dr. Alvin Lin
Internal Medicine - Geriatrics
4 doctors agree
In brief: Depends on your body
A cup of coffee may contain up to 100mg of caffeine.
Most adults can consume two to four cups of coffee daily (really! or 200-300mg) w/o health concerns but this varies widely depending upon your metabolism & sensitivity. Once you push to 500-600mg of caffeine daily, your risk for side effects increases dramatically.

In brief: Depends on your body
A cup of coffee may contain up to 100mg of caffeine.
Most adults can consume two to four cups of coffee daily (really! or 200-300mg) w/o health concerns but this varies widely depending upon your metabolism & sensitivity. Once you push to 500-600mg of caffeine daily, your risk for side effects increases dramatically.
Dr. Alvin Lin
Dr. Alvin Lin
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