Final answer:
Malnutrition includes both undernutrition and overnutrition and can have negative effects on health.
Step-by-step explanation:
Malnutrition refers to not receiving proper nutrition and includes both undernutrition and overnutrition. Undernutrition is characterized by a lack of nutrients and energy intake, while overnutrition is characterized by excessive nutrient and energy intake. Both undernutrition and overnutrition can have negative impacts on overall health.