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Updated: May 19, 2026

Quantitative Analysis of Dietary Vitamin A Metabolites in Murine Ocular and Non-Ocular Tissues Using High-Performance Liquid Chromatography
Published on: December 27, 2024
Vitamins
1Drexel University College of Medicine, St Christopher's Hospital for Children, Philadelphia, PA, USA.
Insights
All infants need 400 IU/day of vitamin D from birth to prevent deficiency and rickets. Newborns require 1 mg of vitamin K at birth, and women of childbearing age should supplement folate to prevent neural tube defects.
Area of Science:
- Pediatrics
- Neonatology
- Obstetrics
Background:
- Vitamin D deficiency and rickets are preventable in infants.
- Vitamin K deficiency bleeding is a serious risk for newborns.
- Neural tube defects can be reduced with adequate folate intake.
Purpose of the Study:
- To outline evidence-based recommendations for vitamin D supplementation in infants and children.
- To establish guidelines for vitamin K prophylaxis in newborns.
- To emphasize the importance of folate supplementation for women of childbearing age.
Main Methods:
- Review of strong research evidence supporting supplementation guidelines.
- Analysis of data on the efficacy of vitamin D, vitamin K, and folate.
- Synthesis of recommendations for pediatric and prenatal nutrition.
Main Results:
- Infants require 400 IU/day of vitamin D from the first days of life.
- Children and adolescents over 1 year may need up to 600 IU/day of vitamin D.
- Newborns should receive 1 mg of vitamin K at birth.
- Folate supplementation is recommended for preconceptional and pregnant women.
Conclusions:
- Routine vitamin D supplementation is crucial for preventing rickets in infants.
- Vitamin K prophylaxis at birth is essential for preventing bleeding disorders.
- Folate supplementation significantly reduces the risk of neural tube defects.
Abstract:
• Based on strong research evidence, all infants should receive 400 IU/day of vitamin D beginning in the first few days of age to prevent vitamin D deficiency and rickets. • Based on strong research evidence, children and adolescents age >1 year may require as much as 600IU/day of vitamin D. • Based on strong research evidence, all newborns should receive 1 mg of vitamin K at birth to prevent vitamin K deficiency bleeding. • Based on strong research evidence, preconceptional and pregnant women should be supplemented with folate to decrease the likelihood of neural tube defects.
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