Bidirectional changes in serum 25-hydroxyvitamin D in newborns during the first four days of life: A longitudinal cohort study

Key Points

• This research aims to quantitatively describe the changes in serum 25-hydroxyvitamin D levels in newborns during the early days of life.
• Longitudinal cohort study
• Measurement of serum 25-hydroxyvitamin D levels over four days post-birth
• Assessment of physiological changes in vitamin D
• Quantitative data on serum 25-hydroxyvitamin D levels in newborns over the first four days.
• Findings indicate significant fluctuations in vitamin D levels shortly after birth.