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Effect of Low-Fat Dairy Products Fortified With 1500Iu Nano Encapsulated Vitamin D3 on Cardiometabolic Indicators in Adults With Abdominal Obesity: A Total Blinded Randomized Controlled Trial Publisher Pubmed



Sharifan P1, 2 ; Ziaee A2 ; Darroudi S3 ; Rezaie M1 ; Safarian M1 ; Eslami S4 ; Khademrezaiyan M5 ; Tayefi M6 ; Mohammadi Bajgiran M3 ; Ghazizadeh H2, 3 ; Khorasanchi Z1, 2 ; Bagherniya M7 ; Sardar MA8 ; Ferns G9 Show All Authors
Authors
  1. Sharifan P1, 2
  2. Ziaee A2
  3. Darroudi S3
  4. Rezaie M1
  5. Safarian M1
  6. Eslami S4
  7. Khademrezaiyan M5
  8. Tayefi M6
  9. Mohammadi Bajgiran M3
  10. Ghazizadeh H2, 3
  11. Khorasanchi Z1, 2
  12. Bagherniya M7
  13. Sardar MA8
  14. Ferns G9
  15. Vatanparast H10
  16. Ghayour Mobarhan M3
Show Affiliations
Authors Affiliations
  1. 1. Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
  2. 2. Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
  3. 3. International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
  4. 4. Department of Medical Informatics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
  5. 5. Clinical Research Development Unit of Akbar Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
  6. 6. Norwegian Center for e-health Research, University hospital of North Norway, Tromso, Norway
  7. 7. Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  8. 8. Department of General Courses, Mashhad University of Medical Sciences, Mashhad, Iran
  9. 9. Brighton & Sussex Medical School, Division of Medical Education, Brighton, United Kingdom
  10. 10. College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Canada

Source: Current Medical Research and Opinion Published:2021


Abstract

Background & aims: Vitamin D deficiency is widespread worldwide. In this study, we aimed to evaluate the effect of a nano encapsulated form of vitamin D used for fortifying low-fat dairy products (milk and yogurt) on anthropometric indices, glycemic status, and lipid profile in subjects with abdominal obesity. Methods: In a totally (quadruple) blinded, randomized, and parallel-controlled trial, 306 individuals with abdominal obesity were randomly allocated to one of four groups: fortified low-fat yogurt (FY, 1500 IU nano encapsulated vitamin D3 per 150 g/d), non-fortified low-fat yogurt (nFY), fortified low-fat milk (FM, 1500 IU nano encapsulated vitamin D3 per 200 g/d), non-fortified low-fat milk (nFM), for 10 weeks (nFM and nFY, were considered as the control groups). Anthropometric and biochemical parameters were measured at baseline and after a ten-week trial in Mashhad, Iran. Results: After the ten-week intervention, we found a significant increase in serum concentration of 25(OH)D in both the FM and FY groups compared to the respective control groups (19.10 ± 5.69 ng/mL and 20.88 ± 5.76 ng/mL respectively, p <.001). We observed a significant reduction in weight to hip ratio (p =.04) and a significant improvement in triglyceride (p <.001) and HDL-C (p =.01) only in FM group compared to nFM group. Also, we found a significant reduction in fasting serum insulin (p <.001), and a significant improvement of HOMA-IR (p <.001) and QUICKI (p <.001) in both intervention groups compared to their placebos. Conclusions: An intake of fortified dairy products containing nano-encapsulated vitamin D3 was associated with an improvement in some measures of anthropometric indices, glucose homeostasis, and lipid profiles, particularly in individuals receiving fortified milk. Hence, along with other benefits, fortification of dairy products with vitamin D may be an effective approach to improve some cardiometabolic indicators, such as insulin resistance. Trial registration number: IRCT20101130005280N27. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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