How does atp provide energy to your body?

Energy is usually liberated from the ATP molecule to do work in the cell by a reaction that removes one of the phosphate-oxygen groups, leaving adenosine diphosphate (ADT). When the ATP converts to ADP, the ATP is said to be spent.

ATP contains chemical potential energy that will snuggle up to a metabolic reaction in your cells---like the contraction of muscles or sending electrical messages along your nerve cells and release the energy of the bonds that hold the third phosphate molecule to the the rest of the ATP(called ADP)
ATP is able to move aroun d in the cytoplasm and deliver the energy to whereever it's needed...likewise it has to pick up this energy from the breakdown of the energy laden nutrients in your food---like glucose, starches, and fats. these large nutrient molcules are unable to move around and interact with energy requiring metabolic processes and transfer their energy---thye need the energy intermediate molecule, the ATP.