Food additives are substances added to food to preserve flavor or enhance its taste, appearance, or texture. They can also be used to improve the nutritional content of food, such as adding vitamins or minerals. Food additives can include preservatives, antioxidants, emulsifiers, stabilizers, thickeners, and flavor enhancers. Research in this area focuses on the safety and efficacy of these additives, as well as their potential impact on human health and the environment. Studies may investigate the potential risks and benefits of specific additives, as well as consumer attitudes and perceptions towards them. Ultimately, the goal of research in this area is to ensure that food additives are used responsibly and safely in the food supply.