Is There Caffeine in Peanut Butter? The Definitive Nutrition Guide
                                
                                
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                                    4 min read                                
                            
                                While naturally occurring peanuts, which are legumes, contain no caffeine, some manufacturers have developed specialty products by adding caffeine to peanut butter for an energy boost. These products sparked concern from officials and health experts due to their high concentration of the stimulant.