Abstract
Nutraceuticals are nutritional supplements exploited for upgrading wellbeing, delayingaging, averting ailments, and supporting the appropriate working of the human body. At present, nutraceuticals are gaining significant attention owing to their nourishment as well as therapeutic potential. On the basis of sources, they are classified into nutritional supplements and biologically active plant-derived molecules. These nutraceuticals support fighting some of the foremost well-being complications of the era, including obesity, cardiac ailments, malignancy, osteoporosis, arthritis, diabetes, etc. Nutraceuticals have benefits over medication since these are devoid of side effects and are composed of nature-based nutritional supplements. This chapter gives an overview of various bioactive components obtained from secondary metabolites of plants with a diverse era of chemical classes that might act as nutraceuticals (i.e., anthraquinones, alkaloids, saponins, tannins, essential oils, carotenoids, flavonoids, bitters, carbohydrates, protein, and vitamins).