eng Science and Education Publishing American Journal of Medical Sciences and Medicine 2327-6657 2018-12-18 6 2 66 72 10.12691/ajmsm-6-2-9 AJMSM2018629 article Yehya Ahmed Masi Almalki 1 Haroun Ibrahim Alhosawi 2 Abdullah Mansour Saeed Alzahrani 3 Hassan Owysh Alsolami 3 Marwan Lafy Al Harbi 3 Mohammed Saffer Althebyani aziz_stat@yahoo.com 4 Suliman Khairat Alansaree 5 Mamduh Lafi Al Harbi 5 Khalid Mansoor Ja'amal 6 Laboratory Specialist, ministry of Health, Saudi Arabia Laboratory Technician, ministry of Health, Saudi Arabia Nursing, ministry of Health, Saudi Arabia Resident, ministry of Health, Saudi Arabia Epidemiology Inspector, ministry of Health, Saudi Arabia Epidemiologist, ministry of Health, Saudi Arabia Background 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. A major cause is lack of sun exposure, and this is evident even in countries at mid and low latitudes. Although a high prevalence has been found in Saudi Arabia, little is known to date about the reasons for this. Aim of the study: The study’s aim was to assessment the knowledge, attitude and practice (KAP) towards vitamin D deficiency, sun exposure, supplementation in a sample of adult female attending the primary health clinic at Makkah, Saudi Arabia Saudi Arabian. Methodology: A cross-sectional study was conducted among 86 female adult attending to clinic in PHC at Makkah, Saudi Arabia. Validated questionnaires concerning demographic data and knowledge scores on Vitamin D and its supplementation were given. Results: All subjects (100%) were not taking vitamin D supplements, most of the subjects were not taking adequate amount of sea foods (96%), (90%) not consuming 1 litter of milk and inadequate intake mushroom in the diet(84%) during maturity period 58% Conclusion: This study was conducted assessment the knowledge, attitude and practice (KAP) towards vitamin D deficiency, sun exposure, supplementation in a sample of adult female attending the primary health clinic at Makkah, Saudi Arabia Saudi Arabian. Most of the respondents were found to have limited information about vitamin D deficiency, and the high prevalence of low level of adherence to vitamin D supplementation of the participants. Overall, must be exposed to health care and educational program in order for them to increase their knowledge about the importance of micronutrients - its function and supplementation - towards adult female, especially the vitamin D. http://pubs.sciepub.com/ajmsm/6/2/9/ajmsm-6-2-9.pdf knowledge aattitude practice Vitamin D supplementation adult female