If we were to zoom in on a salmon, which is a fatty fish, past the organs, past the tissues, into the cells, we would see that the stuff we call fat is actually made up of molecules called triglycerides, and they are not all alike.
Ja mēs papētītu tuvāk lasi, kas trekna zivs, garām orgāniem, garām audiem, šūnās mēs ieraudzītu,  ka to, ko saucam par taukiem, patiesībā veido triglicerīdu molekulas, un tās nav visas vienādas.