Nutrition in school aged children

1. What is the main animal based food sources of proteins, fats and carbohydrates for school-aged children?

2. What is the main  plant based food sources of proteins, fats and carbohydrates for school-aged children?

3. What kind of signs developes cause a long time protein energy deficiency?

Give full answers for the questions using not only reading materials. Try to find the answers in PubMed or Cochrane library databases.

Submit your answers in this assignment!