Inclusion criteria:
Married women between 18 to 49 years old
Not suffering from a wide range of diseases that lead to sexual dysfunction Including: multiple sclerosis and any central nervous system disorders, mental disorders, mental retardation, vasculitis, uncontrolled hypo and hyperthyroidism, anatomical defects of the reproductive system, tumors and tumors and cancer
Not taking drugs affecting sexual function Including: H2 receptor blockers, sleeping pills, cardiac and antihypertensive drugs, anticonvulsants, narcotic drugs, anticancer drugs and corticosteroids, antihistamines, opioids and alcohol and psychotropic drugs, barbiturates
Gynecologic health and absence of endometriosis
Absence of erectile disorders in the husband
Minimum literacy level of the participants
Self-reported absence of alcohol and smoking addiction by the women
Awareness of place and time
Satisfaction and willingness to participate in research
suffering from Type 2 diabetes for at least one year
Not taking vitamin D supplements at least three months before entering the study
Have normal levels of serum Calcium, Phosphorus, and Albumin
Body mass index (BMI) should be less than 30
Absence of malabsorption disorders
Having insufficient vitamin D level (10 – 30 ng/ml)
Exclusion criteria:
Being pregnant or in the the firs trimester after delivery
Surgical history of oophorectomy, hysterectomy, and mastectomy
Early menopause (age less than 40 years)