Do Energy Bars Contain Caffeine? What You Need to Know
                                
                                
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                                    4 min read                                
                            
                                According to the FDA, healthy adults can safely consume up to 400 mg of caffeine daily, but the amount in energy bars varies dramatically. Not all energy bars are created equal, and while some are just a mix of carbohydrates, protein, and fat, others pack a potent dose of stimulants to boost your energy levels.