This chapter will discuss how nanonutrients are increasingly used to help athletes by presenting recent developmentsDevelopment in the use of nanotechnology in the sports nutrition industry which is quite developed at the moment. Athletes have factorsFactors that are barriers to their optimal performance for instance reaction time and decision making as well as mental strength thus there is need to improve brain performance. Nanonutrients are designed seventeen billion times smaller than the common nutrients which gives room for improving cognitive abilitiesAbility include memory, attention as well as stress managementStress management and brain protection. This section explains how nanonutrients improve nutritional absorptionAbsorption by focusing on vitamins and mineralsMinerals among other compounds. Such nutrients are known as nanonutrients go through nanonization and so can cross the blood brain barrier and thus improve neurons and synapses in the brain. Furthermore it looks into how these minuscule nutrients help reduce stress and inflammationInflammation which’re factorsFactors associated with cognitive decline and mental fatigueFatigue in sports related situations. This section illustrates the power of technology in sports by emphasizing studies on nanoscale delivery systemsDelivery systems (nano-based) such as liposomes and nanoemulsions which are able to target specific parts of the brain in a bid to enhance lasting and potent effects on brain activity. Nanoscale technology is able to shift the paradigm of sports abilitiesAbility as covered in this chapter, highlighting the potential of nanonutrients on improving the physical and mental capacities of athletes making them stronger competitors.