Vitamin c dosage per day for child
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Vitamin C Dosage Per Day for Children
Recommended Daily Allowance (RDA) for Vitamin C in Children
The recommended daily allowance (RDA) for vitamin C varies by age. For children aged 1-3 years, the RDA is 15 mg per day, while for those aged 4-8 years, it is 25 mg per day. For older children aged 9-13 years, the RDA increases to 45 mg per day. These recommendations are based on maintaining adequate levels of vitamin C to support normal growth and development.
High-Dose Vitamin C Therapy in Pediatric Patients
Efficacy and Safety of High-Dose Vitamin C
A review of studies involving high-dose vitamin C therapy in pediatric patients found that doses ranged from 100 to 1,500 mg/kg per day, with a median dose of 260.5 mg/kg per day. The studies included children from 2 hours after delivery to 8.4 years old. Importantly, no adverse events or signals of harm were reported, and there was no evidence of clinical efficacy or inferior clinical outcomes in double-blind randomized controlled trials. This suggests that while high-dose vitamin C appears to be safe, its efficacy in treating pediatric conditions remains unproven.
Vitamin C for Respiratory Infection Prophylaxis
A double-blind study conducted among 641 children at a Navajo boarding school evaluated the use of vitamin C supplements (1 and 2 grams per day) for respiratory infection prophylaxis. The study found that children receiving vitamin C had fewer days of morbidity compared to those receiving a placebo. Specifically, there were 26% fewer symptomatic days in younger children and 33% fewer in older girls on vitamin C. However, no significant difference was observed in older boys. This indicates that vitamin C supplementation may reduce the duration of respiratory symptoms in children, although the effect may vary by age and gender.
Vitamin C Supplementation During Pregnancy
A study on pregnant smokers who were given 500 mg of vitamin C daily showed that their infants had improved airway function at 3 months of age. The infants of mothers who received vitamin C had better forced expiratory flows (FEFs) compared to those whose mothers received a placebo. This suggests that maternal vitamin C supplementation can have beneficial effects on infant respiratory health.
Conclusion
While the RDA for vitamin C in children is relatively low, high-dose vitamin C therapy has been shown to be safe but not necessarily more effective in clinical outcomes. Supplementation may reduce the duration of respiratory symptoms in children and improve airway function in infants when administered to pregnant smokers. However, more research is needed to fully understand the benefits and optimal dosages of vitamin C in pediatric populations.
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