J J Yepes-Nuñez1,2, J L Brożek1,3, A Fiocchi4, R Pawankar5, C Cuello-García1,6, Y Zhang1, G P Morgano1, Arnav Agarwal7, S Gandhi7, L Terracciano8, H J Schünemann1,3. 1. Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada. 2. School of Medicine, University of Antioquia, Medellín, Colombia. 3. Department of Medicine, McMaster University, Hamilton, ON, Canada. 4. Pediatric Hospital Bambino Gesù, Vatican City, Rome, Italy. 5. Department of Pediatrics, Nippon Medical School, Tokyo, Japan. 6. Tecnologico de Monterrey School of Medicine and Health Sciences, Monterrey, Mexico. 7. Faculty of Medicine, University of Toronto, Toronto, ON, Canada. 8. National Pediatric Healthcare System, Italian Federation of Pediatric Medicine, Territorial Pediatric Primary Care Group, Milan, Italy.
Abstract
BACKGROUND: To date, a systematic review of the evidence regarding the association between vitamin D and allergic diseases development has not yet been undertaken. OBJECTIVE: To review the efficacy and safety of vitamin D supplementation when compared to no supplementation in pregnant women, breastfeeding women, infants, and children for the prevention of allergies. METHODS: Three databases were searched through January 30, 2016, including randomized (RCT) and nonrandomized studies (NRS). Two reviewers independently extracted data and assessed the certainty in the body of evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. RESULTS: Among the 1932 articles identified, one RCT and four NRS were eligible. Very low certainty in the body of evidence across examined studies suggests that vitamin D supplementation for pregnant women, breastfeeding women, and infants may not decrease the risk of developing allergic diseases such as atopic dermatitis (in pregnant women), allergic rhinitis (in pregnant women and infants), asthma and/or wheezing (in pregnant women, breastfeeding women, and infants), or food allergies (in pregnant women). We found no studies of primary prevention of allergic diseases in children. CONCLUSION: Limited information is available addressing primary prevention of allergic diseases after vitamin D supplementation, and its potential impact remains uncertain.
BACKGROUND: To date, a systematic review of the evidence regarding the association between vitamin D and allergic diseases development has not yet been undertaken. OBJECTIVE: To review the efficacy and safety of vitamin D supplementation when compared to no supplementation in pregnant women, breastfeeding women, infants, and children for the prevention of allergies. METHODS: Three databases were searched through January 30, 2016, including randomized (RCT) and nonrandomized studies (NRS). Two reviewers independently extracted data and assessed the certainty in the body of evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. RESULTS: Among the 1932 articles identified, one RCT and four NRS were eligible. Very low certainty in the body of evidence across examined studies suggests that vitamin D supplementation for pregnant women, breastfeeding women, and infants may not decrease the risk of developing allergic diseases such as atopic dermatitis (in pregnant women), allergic rhinitis (in pregnant women and infants), asthma and/or wheezing (in pregnant women, breastfeeding women, and infants), or food allergies (in pregnant women). We found no studies of primary prevention of allergic diseases in children. CONCLUSION: Limited information is available addressing primary prevention of allergic diseases after vitamin D supplementation, and its potential impact remains uncertain.
Authors: Paige E Bolcas; Eric B Brandt; Zhonghua Zhang; Jocelyn M Biagini Myers; Brandy P Ruff; Gurjit K Khurana Hershey Journal: J Allergy Clin Immunol Date: 2018-06-21 Impact factor: 10.793
Authors: Helen A Brough; Kari C Nadeau; Sayantani B Sindher; Shifaa S Alkotob; Susan Chan; Henry T Bahnson; Donald Y M Leung; Gideon Lack Journal: Allergy Date: 2020-05-18 Impact factor: 13.146