Humans cannot absorb dietary fat without it being digested first. In the small intestine, a digestive enzyme called lipase processes fat droplets into smaller fragments called fatty acids. These fatty acids are absorbed and then reassembled elsewhere to form body fat.
But when FBCx binds with dietary fat, it becomes resistant to lipase activity, preventing its absorption. Instead, the FBCx-fat compound passes through the digestive tract and is metabolized and eliminated.
FBCx can bind with about 9 times its own weight in dietary fat, according to laboratory research*, which is impressive compared to usual dietary fibers which typically bind at only a 1:1 ratio. Studies also suggest that FBCx binds preferentially with unhealthy saturated fats.*