Entomophagy is the practice of consuming insects as food. It is a traditional practice in many cultures around the world and is gaining attention as a potential sustainable and environmentally-friendly source of protein for the future. Research in entomophagy focuses on the nutritional value of insects, the best species to consume, the best ways to incorporate insects into diets, and the cultural and psychological barriers to insect consumption. Studies also investigate the environmental benefits of entomophagy, such as lower greenhouse gas emissions and less land and water use compared to traditional livestock farming.