From a study conducted at Colorado State University, these photographs show how Lipase works.

• Bile salts in your digestive system break down the oil droplets into smaller and smaller droplets (photo 1).

• Lipase, the primary enzyme for digesting oils, digests the surface of the oil droplets (note the roughened surfaces in photo 2).

• This digestion causes the surface tension of the droplet to change, allowing the undigested inner core to pop out (as in photo 3). As the process continues, the droplets get smaller and smaller until they are completely digested.