How fast does B6 take to work? Understanding the timeline for effects
                                
                                
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                                    6 min read                                
                            
                                Vitamin B6 is a water-soluble vitamin that is rapidly absorbed by the body, but the time it takes to feel the benefits depends heavily on the reason for use. So, how fast does B6 take to work? For mild nausea, relief can begin within hours, while correcting a severe deficiency might take several weeks or months of consistent use.