 The energy used by human cells requires the hydrolysis of 100 to 150 moles of ATP daily , which is around 50 to 75 kg . A human will typically use up his or her body weight of ATP over the course of the day . This means that each ATP molecule is recycled 500 to 750 times during a single day ( 100 / 0 @.@ 2 = 500 ) . ATP cannot be stored , hence its consumption closely follows its synthesis . However a total of around 5 g of ATP is used by cell processes at any time in the body . 
