Jolley(1993)is a study of dissolved phosphorus speciation in the lower molongolo sewage treatment plant(Canberra, Australia)detected no triphosphate in raw sewage entering the plant.
These cellular engines normally convert fuel in the form of glucose (from our carbohydrates) to ATP (adenosine triphosphate), a molecule which acts like a micro-charged battery that cells can use for building or moving.
Never in your life will you have to remind a cell to keep an eye on its adenosine triphosphate levels or to find a place for the extra squirt of folic acid that's just unexpectedly turned up.