Nutraceuticals are products with food extracts or bioactive ingredients of foods which have shown great health benefits to their consumers in the last few years. The functional ingredients present in food have a great potential to act as nutraceuticals when taken in proper amount as they are capable enough to prevent and even cure diseases. The organic functional ingredients generally obtained from plants and animals have exhibited great potential in the prevention or cure of many chronic diseases as dietary supplements to replace pharmaceutical drugs and their side effects on the human body. In today’s time, the general public is becoming very conscious about their daily dietary habits to maintain immunity and good health due to emerging new lethal diseases in the last few years. Therefore, nutraceutical supplements and especially herb-based products are becoming the fastest-growing parts of the health industry because of the presence of potential nutraceutical ingredients in them. Moreover, nutraceuticals have benefits over pharmaceuticals because of their natural origin and no or minimal side effects. The present chapter provides compiled information about potential plant and animal-based nutraceutical ingredients, their effect on human health, and future prospects.