Blue for every fresh food you purchased, such as fruits, vegetables, and fresh fish. Yellow to note all the not-so-healthful packaged foods, including cookies, crackers, and frozen pizza. Pink for those better-for-you in-between foods: wholesome but packaged goods like Greek-style yogurt and instant brown rice. Ideally, at least 75% of the items in your cart should be blue or pink. If not, bring your receipt on your next grocery trip to revamp your food repertoire.
