A child who appears healthy and is growing normally may still have hidden vitamin and mineral deficiencies, doctors warn. Persistent tiredness, poor concentration, frequent infections, irritability, weak muscles, brittle nails, slow wound healing, and delayed growth can all be subtle signs of nutritional deficiencies. Iron deficiency may affect learning and memory, while low vitamin D can weaken bones and muscles. Vitamin B12 deficiency may impair development, especially in children on restrictive diets, and zinc deficiency can reduce immunity and appetite. Experts stress that a balanced diet alone may not guarantee adequate nutrition, making regular monitoring and medical advice important for growing children.
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