What are the two key concepts for this section? What is a basic requirement for maintaining good health and resisting disease? Distinguish between chronic undernutrition (hunger) and chronic...

What are the two key concepts for this section? What is a basic requirement for maintaining good health and resisting disease? Distinguish between chronic undernutrition (hunger) and chronic malnutrition and describe their harmful effects. What is famine? Describe the effects of diet deficiencies in vitamin A, iron, and iodine. What is overnutrition and what are its harmful effects? About how many people in the world suffer from hunger and what percentage of them are overweight or obese? What is the biggest contributor to hunger and malnutrition? Define food security.