How much instant coffee is too much in a day?
                                
                                
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                                    4 min read                                
                            
                                According to the FDA, up to 400 milligrams of caffeine per day is considered a safe amount for most healthy adults, but for instant coffee drinkers, this looks different. The question of how much instant coffee is too much in a day depends on various factors, including the specific brand, your body’s unique sensitivity, and your overall caffeine intake from all sources.