How much caffeine is there in charged? A guide to 'Charged' beverages
                                
                                
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                                    4 min read                                
                            
                                According to the FDA, up to 400 mg of caffeine per day is considered safe for most healthy adults, a limit that can be easily exceeded by a single serving of some 'Charged' beverages. How much caffeine is there in charged? The critical distinction is that 'Charged' is not a single, regulated product, but a descriptive term used by multiple brands, leading to significant variations in caffeine levels.