Which Supplement Is Good for Muscle Stiffness? A Comprehensive Guide
                                
                                
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                                    4 min read                                
                            
                                According to research, as many as 50% of people in the U.S. do not get enough magnesium, a crucial mineral for muscle function, which can be a key cause of tightness. If you've ever experienced that familiar ache or tightness after an intense workout or a long period of inactivity, you've likely wondered which supplement is good for muscle stiffness.