Medical literature review of suggests low vitamin D status is common in Rheumatic pts. & low vit D levels linked to loss of muscle strength, MSK pain, sarcopenia & falls (esp in IIM, PMR, SLE, RA, SSc) (BUT DOES REPLACING VITAMIN D FIX THESE PROBLEMS???) https://t.co/30IiKj7l4d https://t.co/ydU6FQMTi5