The new book focuses on the use of natural active substances and nutraceuticals in nano-research for improved healthcare management and applications. It explores advanced nanomaterials that can be utilized for the encapsulation of nutrients, vitamins, and phytoconstituents for the treatment of cancer, psychotic and manic disorders, and chronic inflammation, such as arthritis and psoriasis, as well as for other healthcare issues, such as skin diseases and skin care, atherosclerosis, and more. The chapters discuss the remarkable advantages of using new bioactive and nutraceutical drugs, which offer improved solubility, bioavailability, simultaneous drug delivery, safety extension, long-term delivery, better dissemination of tissue macrophages, security against toxicity, increase in pharmacological activity, and enhanced physical and chemical protection.