As structural transformation changes countries from subsistence agriculture economies to modernized economies, countries undergo a nutrition-related transition 1 (Griffiths & Bentley, 2001). High rates of undernutrition 2 come down and population health improves. However, even as undernutrition decreases, experiences of some countries in the recent past have shown that obesity rates may increase due to overnutrition 3 and this can decrease overall gains made to health during the 1 In the previous chapter, we use the definition of the nutrition transition as described in Popkin (1997), which refers to the dietary transformation that are related to ST. In this chapter the nutrition transformation refers to the changing burden of nutrition-related health problems that constitute the triple burden of malnutrition-we build on the Griffiths and Bentley (2001) conceptualization here. 2 At its broadest level, undernourished individuals are those who do not have access to one or more essential nutrients in their diets. Being undernourished, represented by individuals who are either underweight (too thin for their age), wasted (too thin for their height and age) or stunted (too short for their age) compared to a well-nourished reference population, is one type of undernourishment. Another type of undernourishment is called hidden hunger. This manifests itself as deficiencies of essential micronutrients such as vitamins or minerals in the human body. 3 Over-nourished individuals, on the other hand, are those who consume an excess of a particular macronutrient-calories in particular. This condition is represented by overweight and obesity outcomes which are determined by the age, gender, height and weight of the individual in relation to a similar well-nourished group.