Sustainable protein refers to sources of protein that are produced in ways that minimize environmental impact and promote ecological balance. This includes plant-based proteins, such as legumes, nuts, and grains, as well as sustainably farmed animal proteins that adhere to responsible farming practices. The goal is to provide nutritious food while reducing greenhouse gas emissions, conserving water, and preserving biodiversity. As the global population grows, the demand for protein increases, making sustainable protein essential for food security. Innovations in food technology, such as lab-grown meat and insect protein, are also emerging as viable alternatives. These options aim to meet dietary needs while protecting the planet's resources.