Diet and nutrition are critical to health, well-being and longevity. The economic and health burdens associated with poor quality diets are a worldwide concern, but for low- and middle-income countries (LMICs), the long-term impact of these burdens has the potential to be especially devastating. Many of these LMICs are currently grappling with the deepening multiple burdens of malnutrition, with undernutrition, nutrient inadequacies, and overweight and obesity often presenting simultaneously in communities, households and even in single individuals.