Caffeine Effects: Withdrawal, Sleep & Health Impact

Caffeine impacts everything from sleep quality to concentration and heart rate. Learn how long withdrawal takes, the diuretic effects on the body, and the potential risks of taking caffeine tablets with medication or alcohol.

The Maximum Daily Dosage of Caffeine

Published Jul,08 2011 | By Ryn Gargulinski

Unlike vitamins, minerals and other nutrients, there is no set limit for a maximum daily dose of caffeine. Depending on your own sensitivity to caffeine, you could max out with a single cup of coffee, which generally contains up to 100 mg of the stimulating drug.