BACKGROUND Exclusive breastfeeding is recommended up to 6 months of age with all its beneficial effects on child survival. Several studies have shown that adequate intake of vitamin D cannot be met with human milk as the sole source of vitamin D, although risk factors for developing vitamin D deficiency may be low maternal levels of vitamin D, indoor confinement during the day, living at higher altitudes, living in urban areas with tall buildings, air pollution, darker skin pigmentation, use of sunscreen and covering much over the body when outside. An infant who is entirely on breastfeeding and has minimal to no exposure to sunlight is more prone to the development of hypovitaminosis-D. The main purpose of the study was to identify the prevalence & high-risk groups of hypovitaminosis D in exclusively breastfed babies. METHODS It was a cross-sectional observational study consisting of 30 entirely breastfed healthy full-term babies with a birth weight > 2.5 kg. Babies born to mothers with a history of pre-eclampsia, gestational diabetes, antepartum haemorrhage, tuberculosis, and other chronic medical illnesses were excluded from the study. The period of study was from 1st August 2019 to 30th September 2019. Their serum vitamin D3, serum calcium, serum phosphate, and alkaline phosphatase levels were measured using appropriate methods. RESULTS In our study, 25 infants out of 30 came out as vitamin D deficient. The prevalence of vitamin D3 was found to be 83 %. CONCLUSIONS Breastfeeding is of utmost importance but the nutritional status of the mother, proper exposure to the sun, and vitamin D supplementation are the factors that should be taken care of for the prevention of hypovitaminosis D. KEY WORDS Vitamin D3, Hypovitaminosis D, Exclusive Breast Feeding, term babies, infants, Sun Exposure, Rickets
Reply: “Comment on: The Vitamin D–Folate Hypothesis as an Evolutionary Model for Skin Pigmentation: An Update and Integration of Current Ideas, Nutrients 2018, 10, 554”
