Society of Diabetic Nephropathy Prevention Annals of Research in Antioxidants 2476-5511 1 2 2016 05 29 Age at menarche and vitamin D; a new perspective of an old problem e28 e28 EN Masoud Amiri Journal Article 2016 04 01 2016 05 09 Vitamin D deficiency (VDD) is associated with some chronic diseases like diabetes, some types of cancer, cardiovascular risk, neurological disorders and autoimmune diseases. It is common among children and adolescents, even in countries with enough sunlight, especially in low-income groups. The relation between vitamin D and early age at menarche has been approved.