Infant infection reduced by half with vitamin D supplementation – RCT
Effect of vitamin D supplementation, directly or via breast milk for term infants, on serum 25 hydroxyvitamin D and related biochemistry, and propensity to infection: a randomised placebo-controlled trial.
Br J Nutr. 2016 May 17:1-7. [Epub ahead of print]
Chandy DD1, Kare J2, Singh SN2, Agarwal A3, Das V3, Singh U3, Ramesh V4, Bhatia V1.
1Department of Endocrinology,Sanjay Gandhi Postgraduate Institute of Medical Sciences,Lucknow 226014,India.
2Department of Pediatrics,Queen Mary's Hospital,King George's Medical University,Lucknow 226003,India.
3Department of Obstetrics and Gynecology,Queen Mary's Hospital,King George's Medical University,Lucknow 226003,India.
4Department of Clinical Chemistry,Sanjay Gandhi Postgraduate Institute of Medical Sciences,Lucknow 226014,India.
| 120,000 IU monthly mother |
400 IU daily infant |
Placebo |
| 19 days | 13 days | 47 days |
We assessed the effect of vitamin D supplementation on related biochemistry, infection and dentition of the infant. In a double-blind, placebo-controlled trial conducted in Lucknow, India (latitude 26°N), 230 mother -newborn pairs were randomised to receive, for 9 months, 3000µg/month oral vitamin D3 by the mother (group A) or 10 µg/d by the infant (group B ) or double placebo (group C).
All babies received 15 min of sun exposure (unclothed) during massage.
Infants' median 25-hydroxyvitamin D ( 25(OH)D) was lower in group C (median 45·3; interquartile range (IQR) 22-59·5 nmol/l) than in groups A (median 60·8; IQR 41·3-80·5 nmol/l (P7.5µkat/l) was significantly more frequent in group C babies (16 %) than in group A (4 %) or group B (0 %) babies. The number of days with respiratory or diarrhoeal infection by 9 months of age was higher in group C (median 46·5; IQR 14·8-73·3 d) than in group A (median 18·5; IQR 8·8-31·0 d (P<0·01)) or group B (median 13·0; IQR 7·0-28·5 (P<0·05)). We conclude that monthly maternal or daily infant supplementation with vitamin D along with sun exposure is superior to sun exposure alone in maintaining normal infant 25(OH)D at 3·5 months, and provide protection from elevated alkaline phosphatase and infectious morbidity.