Vitamin C requirements in children
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Vitamin C Requirements in Children: Recommended Intakes
Current guidelines from European and German nutrition authorities recommend that vitamin C requirements for children should be based on age and body weight, with values increasing as children grow older. For children aged 1–3 years, the recommended intake is about 20 mg/day, rising to 85–100 mg/day for adolescents aged 15–17 years, with slightly higher values for boys than girls. For infants aged 7–11 months, a daily intake of 20 mg is considered sufficient. These recommendations are extrapolated from adult requirements and are designed to maintain healthy vitamin C levels in the body and prevent deficiency symptoms such as scurvy 239.
Prevalence of Vitamin C Deficiency in Children
Despite established recommendations, a significant proportion of children do not meet the recommended vitamin C intake. Studies in the United States and China have found that only about 25% of children achieve adequate vitamin C status, with many consuming less than the recommended amounts. In some hospital settings, up to 98% of pediatric patients have been found to have decreased vitamin C levels, and clinical cases of scurvy, though rare, still occur, especially in children with restricted diets or poor intake of fruits and vegetables 1456.
Dietary Sources and Patterns Affecting Vitamin C Intake
Children with desirable vitamin C intakes tend to consume more fruits, especially citrus, and vegetables, as well as more milk. In contrast, those with low vitamin C intake often have diets higher in fat and lower in fruits and vegetables. The main sources of vitamin C in children's diets are fruit juices and fresh fruits, but many children do not consume enough servings of these foods daily. Health professionals recommend at least five servings of fruits and vegetables per day, with at least one serving rich in vitamin C .
Special Considerations: Infants, Illness, and Supplementation
Infants exclusively fed donor milk may not receive enough vitamin C, as the content in donor milk can be lower than the recommended intake, suggesting supplementation may be necessary in these cases . Critically ill children and those with chronic illnesses are also at higher risk for vitamin C deficiency, which can impact immune function and recovery 48. However, excessive vitamin C intake, particularly in children with kidney disease, can lead to complications such as oxalate accumulation, so supplementation should be carefully managed in these populations .
Conclusion
Vitamin C is essential for children's health, but many do not meet the recommended intake, putting them at risk for deficiency. Ensuring a diet rich in fruits and vegetables, monitoring at-risk groups, and supplementing when necessary are key strategies to meet vitamin C requirements in children and support their overall health 1234+6 MORE.
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