An estimated 80% of the world’s population enjoys a caffeinated product daily.
Both the U.S. Department of Agriculture (USDA) and European Food Safety Authority (EFSA) define
a safe caffeine intake as up to 400 mg per day, 200 mg per single dose, or 1.4 mg per pound (3 mg per kg) of body weight (
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Due to its stimulating effects, caffeine has been linked to health benefits like enhanced alertness,
improved athletic performance, elevated mood, and increased metabolism (
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That said, consuming high amounts — such as single doses over 500 mg — may raise some concerns (
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In large doses, caffeine has been associated with anxiety, restlessness, and difficulty sleeping. In addition, some studies suggest that drinking it regularly, even in moderate amounts, can cause chronic headaches and migraines (
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Furthermore, caffeine is considered mildly addictive, and some people may be more susceptible to developing a dependence (
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Summary
Caffeine is a popular stimulating compound found in many foods and drinks, including coffee and tea. It’s associated with many health benefits, but consuming too much of it may raise some concerns.
