2 out of 3 girls—and many women—aren’t getting the nutrients they need to live at full strength.

So Special K created the world’s very first Shortfall Supermarket: an NYC pop-up with aisles organized by five of the most common shortfall nutrients, all of which are present in Special K cereal.

Upon entering, people were offered a quiz to determine which vitamins and nutrients were lacking in their own diets, then encouraged to shop the aisles, sample exclusive Special K dishes, and donate to Girl Up, an organization that’s helping close the nutrient gap for girls around the world.