Abstract

Background
      Vitamin D is one of the major vitamin and very essential for maintenance of normal growth and development of strong bones. It is often referred to as the "sunshine vitamin" because it can be synthesized in the body from the ultraviolet rays provided by the sun. Vitamin D is known to have essential roles in the human body. However, the case of vitamin deficiency is reported to increase in many adult worldwide, especially in Saudi Arabia. Vitamin D deficiency is associated with numerous chronic diseases including cancer, heart disease and diabetes type 1 and 2. It is currently estimated that one billion people suffer from vitamin D deficiency worldwide. Sunlight is the main and natural source of vitamin D and most foods contain very little amount of it. The main action of vitamin D is to help calcium and phosphorus in our diet to be absorbed from the gut.
 Aim of the study: The study’s aim was to assess the knowledge regarding vitamin D deficiency ​among female adult attending the primary health clinic at Makkah at Saudi Arabia
Methodology: Across sectional descriptive study was conducted among female adult attending to clinic in PHC at Makkah, Saudi Arabia city, during the October to December, 2019. Our total participants were (150).  Results: Major findings of the study were (38%) adult women were in the group of age between 25 to 35 years. The majority of the women (84.67%) “married” status. The majority of the women were (49.33) secondary level of education, regarding chronic disease, most of the mothers in the study were found to have no chronic disease were (62.00%). The income level of (56.0%) of the respondents ranged average, the majority of the women were (42.0%) Sources of knowledge doctor.
 Conclusion: Vitamin D deficiency is prevalent among the various age groups in our country due to various factors. So, Awareness programmes have to be conducted to make the general public including the females aware of the vitamin D, its deficiency, causative factors and the preventive measures. So this study was done this study was conducted assessment the knowledge towards vitamin D deficiency, sun exposure, supplementation in a sample of adult female attending the primary health clinic at Makkah, Saudi Arabia Saudi Arabian.