Vitamin D Deficiency among Middle-Aged Women in Karaj, Iran

Background: Vitamin D is a fat-soluble vitamin that is an essential nutrient in the body. It is present in both D2 and D3. Vitamin D deficiency as a major public health problem is known over the world. Methods and Materials: This study was conducted to determine the prevalence of 25-hydroxyvitamin D deficiency in 240 middle-aged women (40-60 years old) in late April 2017 in Karaj. Sampling was done randomly from Blood tests were performed among the patients. Results: The results showed that the prevalence of vitamin D deficiency was 95-90%, and the incidence was more pronounced between the ages of 30 and 30 years. The mean serum level of vitamin D showed a positive significant difference in different decades of age (P 0.0001). The relationship between mean serum level with the type of house was not significant (P = 0.142), but there was negative and significant (P 0.001) relationship with the house direction. The relationship of mean serum level with the number of pregnancies and the number of children was not significant (P = 0.159). The correlation of the mean serum level of vitamin D with Body Mass Index (BMI) was not significant (P = 0.567). Conclusion: Vitamin D deficiency was prevalent in studied population, especially among youth comparing to elderly participants. Due to this research, enrichment and fortified dairy and some food with vitamin D is recommended.