Alternative proteins (APs) are being explored as a sustainable solution to meet the global food demand, which is expected to nearly double by 2050. APs include plant-based, insect-based, microbe-derived, and cultured meat and seafood. While plant-based and insect-based proteins have shown environmental benefits, the environmental impacts of microbe-derived proteins and cultured meat remain under investigation. The development of APs with nutritional and sensory profiles similar to conventional proteins is challenging. Additionally, safety assessments and regulatory guidelines are incomplete, hindering progress. The AP market is projected to grow from USD 15.3 billion in 2023 to USD 26.5 billion by 2030. However, APs face challenges such as high production costs, sensory characteristics, and consumer unfamiliarity. Environmental impacts of APs are generally lower than those of livestock farming, but the true environmental impact of cultured meat and seafood is not fully assessed. Technological challenges include replicating the sensory properties of conventional proteins, and the nutritional profile of APs varies, with plant-based proteins often lacking essential amino acids. Safety concerns include allergens and contaminants, and regulatory frameworks are lacking. The future of APs depends on technological advancements, improved safety, and clear regulatory guidelines.Alternative proteins (APs) are being explored as a sustainable solution to meet the global food demand, which is expected to nearly double by 2050. APs include plant-based, insect-based, microbe-derived, and cultured meat and seafood. While plant-based and insect-based proteins have shown environmental benefits, the environmental impacts of microbe-derived proteins and cultured meat remain under investigation. The development of APs with nutritional and sensory profiles similar to conventional proteins is challenging. Additionally, safety assessments and regulatory guidelines are incomplete, hindering progress. The AP market is projected to grow from USD 15.3 billion in 2023 to USD 26.5 billion by 2030. However, APs face challenges such as high production costs, sensory characteristics, and consumer unfamiliarity. Environmental impacts of APs are generally lower than those of livestock farming, but the true environmental impact of cultured meat and seafood is not fully assessed. Technological challenges include replicating the sensory properties of conventional proteins, and the nutritional profile of APs varies, with plant-based proteins often lacking essential amino acids. Safety concerns include allergens and contaminants, and regulatory frameworks are lacking. The future of APs depends on technological advancements, improved safety, and clear regulatory guidelines.