Dr. Petri et al: Very ⬇ 25(OH)Vit D levels (<20ng/mL) is associated w/ renal insufficiency in SLE 🚨Levels >60ng/mL can ⬆renal insufficiency This reinforces benefits of Vit.D supplementation (⬇ protnuria; immunomodulation) @RheumNow #ACR20 abs1789 https://t.co/BJciK77fcp