Is 800 mg of caffeine a day a lot? Risks Explained
                                
                                
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                                    2 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), up to 400 mg of caffeine per day is considered safe for most healthy adults. Consuming 800 mg of caffeine a day is double this recommended limit, widely regarded by health experts as dangerously high.