Nanotechnology (NT), using nanometric materials, has impressed many scientists, technologists, and students due to the results observed when applied in crop fields and the environment. The effectiveness of nanometric-scale materials depends on the unique properties of Nanomaterials (NMs) or Nanoparticles (NPs). Size, shape, surface charge, surface/volume ratio, and catalytic activity, among other aspects, favor positive changes in plant growth or the decontamination of soils contaminated with organic, inorganic, or heavy metal contaminants. Despite the efficiency of nanometric products, at the laboratory and field level, it has been suggested that the indiscriminate use of NMs and NPs may represent risks for plants, soil organisms, and humans. The extensive literature mentions that plants and some soil animals can accumulate high concentrations of different nanometric products. Also, it is suggested that within cells, nanomaterials or nanoparticles can transformed when they come into contact with organic components or with the physical, chemical, and biological properties of the soil. Therefore, in this section, the implications of nanomaterial transformations in edible plants and soil organisms are discussed.