In response to increasing customer concerns over health, nutrition, and food quality, the food industry has recently concentrated on creating food products with functional attributes that possess distinct compositions and nutritional excellence. Functional foods, alongside conventional nutrition, incorporate bioactive components that enhance health and diminish the risk of illness. Functional foods may consist of those that inherently have functional components, those that are fortified with functional nutrients, or those that eliminate specific elements to mitigate the risk of certain diseases. The functional attributes of animal-derived foods (milk, meat, and eggs) stem from their inherent functional components, which play a vital role in world nutrition. Adding beneficial ingredients to milk and meat during processing (like probiotics, prebiotics, and antioxidants) or replacing certain ingredients (such as saturated fats) with healthier options helps create dairy and meat products that offer health benefits. The production of functional food is consistently rising, and customers are progressively embracing novel items. This work reviews literary data on the functional features of several animal-derived foods and their significance in the diet.