Is Nano-Biofortification the Right Approach for Malnutrition in the Era of COVID-19 and Climate change?

Human health may depend on the environment and its compartments, which include climatic factors. These factors their changes might impact human particularly outbreak of pandemics like COVID-19. The combined stress resulted from climate COVID-19 could be noticed in several countries especially developing countries. Malnutrition is considered one most important problems particular under droughts, flooding, other events. was aggravated these due to closure border between countries, crisis global trade, food insecurity. biofortification process sustainable solution overcome malnutrition, included very recently using nano-nutrients as called nano-biofortification. approach nano-biofortification a promising tool producing biofortified edible plants, otherwise this still needs more studies answer open questions can used nano-biofortification? Which recommended doses crops are suitable candidates?