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  • Title: Do infants with cow's milk protein allergy have inadequate levels of vitamin D?
    Author: Silva CM, Silva SAD, Antunes MMC, Silva GAPD, Sarinho ESC, Brandt KG.
    Journal: J Pediatr (Rio J); 2017; 93(6):632-638. PubMed ID: 28628759.
    Abstract:
    OBJECTIVE: To verify whether infants with cow's milk protein allergy have inadequate vitamin D levels. METHODS: This cross-sectional study included 120 children aged 2 years or younger, one group with cow's milk protein allergy and a control group. The children were recruited at the pediatric gastroenterology, allergology, and pediatric outpatient clinics of a university hospital in the Northeast of Brazil. A questionnaire was administered to the caregiver and blood samples were collected for vitamin D quantification. Vitamin D levels <30ng/mL were considered inadequate. Vitamin D level was expressed as mean and standard deviation, and the frequency of the degrees of sufficiency and other variables, as proportions. RESULTS: Infants with cow's milk protein allergy had lower mean vitamin D levels (30.93 vs.35.29ng/mL; p=0.041) and higher deficiency frequency (20.3% vs.8.2; p=0.049) than the healthy controls. Exclusively or predominantly breastfed infants with cow's milk protein allergy had higher frequency of inadequate vitamin D levels (p=0.002). Regardless of sun exposure time, the groups had similar frequencies of inadequate vitamin D levels (p=0.972). CONCLUSIONS: Lower vitamin D levels were found in infants with CMPA, especially those who were exclusively or predominantly breastfed, making these infants a possible risk group for vitamin D deficiency.
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