Question
How many international units of vitamin A and vitamin D should a three-year-old child consume daily? Is a 3:1 ratio of vitamin A to vitamin D the best? What is the safe ratio if it exceeds 3:1? Thank you!
Answer
Health Guide: Hello, vitamins are typically obtained through food intake, and if a deficiency is present, they can be supplemented with medication, but only with a doctor’s prescription and under medical supervision. Otherwise, insufficient dosage does not solve the problem, while excessive dosage may lead to toxicity; excessive vitamin D can cause calcium to deposit in the brain, kidneys, and lungs, leading to diseases such as uremia. How many international units of vitamin A and vitamin D should a three-year-old child consume daily? Is a 3:1 ratio of vitamin A to vitamin D the ideal one? What is the safe ratio if it goes beyond 3:1? Thank you! Health Guidance: Hello, vitamins are usually obtained through dietary sources, and if there is a deficiency in a specific vitamin, supplementation with medication can be considered, but only with a doctor’s prescription and adherence to medical instructions. Otherwise, if the dosage is too low, the issue will not be resolved; if the dosage is too high, it may result in toxicity; excessive vitamin D can lead to calcium deposition in the brain, kidneys, and lungs, causing diseases like uremia.