Researhers at Lund University conducted a study where oat oil was prepared into a mayonaise like preparation and added as a dietery supplement (oat oil replaced the common vegetable oils). The researchers discovered that this leads to increased release of three different satiety hormones, PYY, GLP-1 and CCK, which in turn makes us feel fuller and eat less. They also saw increased release of a hormone -- GLP-2 -- that promotes the growth of the intestinal cells, as well as beneficial effects on sugar and free fatty acids in the blood.

"Our results suggest that the oat oil preparation could be an effective dietary supplement that supports reduced energy intake in a healthy way. However, more studies are needed to confirm our results and further chart the mechanisms," says Lena Ohlsson, a medical researcher at Lund University.

If we constantly eat high-energy food, our satiety signals become dulled. However, various supplements can influence metabolism or reinforce our satiety signals. Several previous studies have shown that higher levels of satiety hormones are linked to satiety and lower energy intake. I believe that the oat oil preparation that we have tested has what is needed to keep you feeling fuller for longer and therefore makes it easier to refrain from overeating,"

From Science Daily