Is it safe to drink four shots of espresso?
                                
                                
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                                    4 min read                                
                            
                                For healthy adults, the U.S. Food and Drug Administration (FDA) cites 400 milligrams of caffeine per day as a safe amount, an intake level that approximately aligns with four shots of standard espresso. However, four shots can feel quite different depending on the person, suggesting that individual sensitivity and other factors play a significant role in determining how much is too much.