Is vitamin D supplementation beneficial for pediatric patients?

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Last updated: May 17, 2025View editorial policy

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From the Guidelines

Vitamin D supplements are recommended for children at risk of deficiency, with a daily dose of 400-600 IU, as suggested by the ESPGHAN Committee on Nutrition 1. The decision to take supplements of vitamin D for children should be based on their individual risk factors and needs. Children who are at risk for vitamin D deficiency, such as those with limited sun exposure, darker skin tones, certain medical conditions, or restricted diets, may benefit from supplementation.

Key Considerations

  • The ESPGHAN Committee on Nutrition recommends a total daily vitamin D intake of 400 IU/day for infants and 600 IU/day for children and adolescents 1.
  • Preterm infants on parenteral nutrition (PN) should receive 200-1000 IU/day of vitamin D, while term infants up to 12 months of age should receive 400 IU/day, and older children should receive 400-600 IU/day 1.
  • Paediatric patients receiving long-term PN should be monitored periodically for vitamin D deficiency, and additional supplementation should be provided if serum concentrations are < 50 nmol/L 1.
  • Oral supplementation of vitamin D should be considered in patients on partial PN as well as during weaning from PN 1.

Important Notes

  • Vitamin D is essential for calcium absorption and bone development, and deficiency can lead to rickets, a condition causing soft, weak bones.
  • Over-supplementation can be harmful, as vitamin D is fat-soluble and can accumulate in the body.
  • Before starting any supplement, it's best to consult with your child's healthcare provider, who can assess their specific needs and recommend appropriate dosing.

Recommendations

  • Infants who are exclusively or partially breastfed should receive 400 IU of vitamin D daily starting in the first few days of life.
  • Formula-fed infants who consume less than 32 ounces of formula per day should also receive 400 IU of vitamin D daily.
  • For older children and adolescents, 600 IU of vitamin D daily is recommended.

From the Research

Vitamin D Supplementation for Children

  • The American Academy of Pediatrics recommends that infants who are exclusively or partially breastfed require 400 international units of vitamin D daily from the first few days of life 2.
  • Severe vitamin D deficiency may cause rickets in infants or children, and subclinical vitamin D deficiency is associated with osteoporosis and a higher incidence of falls or fractures 2.
  • Vitamin D receptors are present all over the body, and insufficient vitamin D status may correlate with several extra-skeletal effects, such as pregnancy-related complications and immune dysfunction 2.
  • The decision to take vitamin D supplements should be individualized, and medical advice should be sought to determine the appropriate dosage 2, 3.

Benefits and Risks of Vitamin D Supplementation

  • Vitamin D supplementation can improve musculoskeletal health, reducing the rate of fractures and falls in older adults 3.
  • However, the benefits of vitamin D supplementation for other health outcomes, such as autoimmune disease, cancer, and cardiovascular disease, are not well established 3, 4.
  • The risks of vitamin D supplementation are generally considered to be low, but high doses can cause harm 3, 5.
  • The optimal dosage and serum level of vitamin D are not well established, but a level of 30-80 ng/ml is generally considered to be optimal 3, 5.

Strategies for Addressing Vitamin D Deficiency

  • Increasing dietary intake of vitamin D through food fortification or supplementation can help address vitamin D deficiency 6, 4.
  • Sun exposure can also increase vitamin D levels, but it is not a reliable or safe method for maintaining adequate vitamin D status 2, 6.
  • A worldwide public health intervention that includes vitamin D supplementation in certain risk groups and systematic vitamin D food fortification could help prevent severe vitamin D deficiency 4.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Vitamin D and health - The missing vitamin in humans.

Pediatrics and neonatology, 2019

Research

Vitamin D deficiency 2.0: an update on the current status worldwide.

European journal of clinical nutrition, 2020

Research

Vitamin D insufficiency: Definition, diagnosis and management.

Best practice & research. Clinical endocrinology & metabolism, 2018

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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