How much nicotine is in a head of cauliflower?
                                
                                
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                                    3 min read                                
                            
                                Trace amounts of nicotine have been detected in common vegetables, including cauliflower, at levels far too low to cause any physiological or addictive effects. Although not a member of the nightshade family, cauliflower still contains this natural alkaloid in extremely small quantities.