New tool can help develop personalized, low-impact diets for people around the world To improve our own health and the health of our planet, dietary habits will need to change. Because the composition of an optimal diet changes depending on the combination of location, season, and personalized dietary needs, investigators have built a tool that uses an extensive database of food items, nutrients, and environmental-impacts to develop optimized diets specific to an individual in a given country and month. Related Stories As described in an article published in the Journal of Industrial Ecology, the tool breaks new ground: it can be used to develop personalized, healthful, low-impact diets for people around the world.