Vitamin D in Children

Definition

Vitamin D is a crucial nutrient for bone mineralization, calcium absorption, and immune system function. In children, it is essential for normal bone growth and prevention of rickets.

How it works

Vitamin D is produced by the skin upon sun exposure and can be obtained through diet. It plays a fundamental role in intestinal calcium absorption, bone mineralization, and regulation of blood calcium. Additionally, vitamin D modulates the immune response, reducing the risk of respiratory infections and autoimmune diseases. Insufficient intake in children increases the risk of rickets, growth problems, and long-term bone complications. Main sources include sun exposure, fatty fish, eggs, and fortified foods.

Role

Allow for calcium absorption, bone mineralization, and immune system strengthening in children.

Examples

• Infant receiving systematic vitamin D supplementation from birth
• Rich fish-based diet (salmon)
• Moderately regular outdoor sun exposure (15-30 minutes/day)
• Vitamin D-enriched infant formula

Recommendations

Ensure moderate and regular sun exposure (15-30 minutes/day based on latitude and season). Provide vitamin D-rich foods or fortified foods from diversification. Implement systematic vitamin D2 or D3 supplementation in infants (400-600 IU/day), particularly breastfed or sun-exposed children.

Key takeaway

Vitamin D is essential in children and systematic supplementation prevents rickets and strengthens bone and immune health.

Related terms