What vitamin should I take to prevent bruising? The definitive guide to reducing easy bruising
                                
                                
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                                    4 min read                                
                            
                                According to the Cleveland Clinic, most people will experience bruising at some point, but if you seem to bruise easily or without cause, a vitamin deficiency could be the culprit. Determining what vitamin should I take to prevent bruising involves understanding how certain nutrients strengthen blood vessel walls and support proper blood clotting.