Abstract: Application of nanotechnology has shown its great dominance in the fields of agriculture and food up to date and several kinds of nano-food have been developed and put into the market. However, studies on nanotechnology are still at the initial stage. Safety of nano-food, namely its effect on human body and environment has not been fully and clearly understood yet, which restricted the researches of nano-food and its development. In this paper, we reviewed the current state-of-the-art of nano-food and issues on evaluating methodology of nano-food safety and future exploration and developments on nano-food were proposed.

Key words: nano-food, state-of-the-art, safety