Microbial redemption of "evil" days: a global appraisal to food security.

Without refute, a sustainable global food security can only be achieved when all folks have physical, social and economic access to safe, nutritious, and sufficient supply of food to meet their dietary needs and food preferences for healthy life. To this end, quest to achieve this dream has been on course since 1970s as evident by the establishment of a committee on food security in 1975 by the UN World Food Conference to oversee and make developmental difference in food security. Interestingly, 2019 Global Hunger Index revealed transition in global hunger from serious to moderate with 31% decline in global hunger since 2000, and hence depicting enhanced food security. Despite this achievement, many countries are still battling with hunger and under-nutrition. Moreover, if the ''zero hunger'' goal envisaged by World Food Program is to be actualized by 2030, then it is crucial to pool efforts toward the provision of suggestive approach(es) for mitigating global hunger and under-nutrition while averting the "evils days" of food scarcity, starvation, food borne illnesses, wastage, malnutrition and death. On this note, microorganisms have revolutionized from the era of only being known as food spoilers and disease-causing agents to useful resources with the capability to improve food supply, food safety and food production through bio-preservation, bio-based production, bio-fertilization among others. Therefore, the exploration of microbes in redeeming the "evils" associated with food insecurity cannot but be appraised. To this end, this review proposes optimization of different microbial processes as food security enhancing agents.