What Vitamin Deficiency Causes Aching Arms?: The Nutritional Link to Muscle and Nerve Pain
                                
                                
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                                    5 min read                                
                            
                                According to the National Institutes of Health, vitamin D deficiency can directly cause skeletal muscle pain and hypersensitivity. If you've been wondering **what vitamin deficiency causes aching arms**, this and other nutritional shortfalls could be the surprising culprit behind your discomfort.