The Institute for Integrative Nutrition (IIN) is the longest-standing nutrition and health coaching school in the world. Their curriculum includes expert-led classes in nutrition, public health, functional medicine, business, marketing, and everything you need in order to become a successful health coach. IIN’s classes are available through an online learning platform and mobile app, giving you the flexibility to learn any time, anywhere. They’re also dual-licensed to ensure credibility, trust, and value in the certificate you earn.