What Deficiency May Result in Muscle Weakness? A Comprehensive Nutritional Guide
                                
                                
                                •
                                
                                
                        
                                    
                                    6 min read                                
                            
                                According to studies, vitamin D deficiency is incredibly common, affecting up to 42% of the U.S. population, and is a significant factor in muscle weakness. Beyond this, several other common nutrient shortages can lead to declining muscle strength and overall fatigue, directly answering the question of **what deficiency may result in muscle weakness**.