Nutritional requirements To live to grow and thrive, humans must take in nutrients from their environment Before birth there are supplied by the mother, but ereafter they must be ingested If too little is provided, the infant will not grow and may become ill, and too much may lead to toxicity or obesity
一、 Definition Growth: volume increasing of body& organs Development: tissues& organs functional maturation, that is the concept of ongoing change and maturation Child development encompasses all aspects of pediatrics. It applies to somatic, psychological, and cognitive growth and to behavior