But beware of excess
Too much caffeine can have the opposite effect.
According to ANSES (the French Agency for Food, Environmental and Occupational Health & Safety), about 30% of adults and 11% of children in France consume more caffeine than recommended. This can cause:
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Palpitations and restlessness
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Anxiety and nervousness
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Sleep disturbances
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Long-term cardiovascular and bone effects
Certain groups are more sensitive to caffeine, including pregnant women, children, and people taking heart or anxiety medication.
The ideal daily dose of coffee
Dr. Wen reminds us that “up to 400 mg of caffeine per day – roughly equivalent to four cups of filtered coffee – is a safe intake for most adults.”
This corresponds approximately to:
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4 cups of filter coffee, or
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3 espressos, or
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2 large American-style coffees
Beyond that, side effects such as tremors, irritability, or insomnia may appear.
