Traditional food systems of indigenous peoples are based on local access to a diversity of naturally resilient food plants and animals adapted to the environment. However, these systems are threatened as diets and environments become unsustainable, leading to widespread hunger, malnutrition, and loss of biodiversity. Revitalizing traditional food systems can help address these issues through conserving agro-biodiversity, supporting smallholder farmers, and prioritizing local crops in place of imported processed foods that contribute to poor health outcomes and environmental degradation.