This report highlighted the co-emergence of malnutrition and overnutrition where rich urban children eat excessive calorie rich but nutrient empty food (devoid of minerals and vitamins).
It is often used specifically to refer to undernutrition where there is not enough calories, protein or micronutrients; however, it also includes overnutrition.
Rates of obesity are soaring across the world and recent trends suggest that incidences of overnutrition in coming decades will overtake that of undernutrition in the developing world.