Nutraceuticals are usually seen as natural and safe supplements that have the potential to prevent diseases, serve as alternatives to prescription pharmaceuticals, address nutritional deficiencies, or enhance overall well-being. Most nutraceutical products are designed to be taken orally. However, there are concerns regarding their formulation, bioavailability, and targeted distribution to specific sites. The primary factors contributing to the improper delivery of nutraceuticals are their labile nature, limited oral absorption, and lack of targetability. Nanotechnology presents new opportunities for improvements in various scientific and technological sectors. Several novel phytotherapy and nutraceuticals, such as polymeric nanoparticles, nano capsules, and nano emulsions, have been developed applying bioactive and edible components. Nutraceuticals offer significant benefits compared to traditional plant active formulations. These show effects include enhancement of solubility, improved bioavailability, enhanced stability, sustained release, better distribution within tissues, enhanced pharmacological activity, protection against toxicity, and protection from degradation.