Fatty acids are a byproduct of fat metabolism. These are acids that are produced when fat is broken down in our body. Fatty acids are important in a number of metabolic functions in our body. They help move oxygen, keep skin healthy, prevent aging at a cellular level, promote weight loss by promoting cholesterol processing by the body, and prevent build up of plaques in blood vessels. Examples of different types of Omega fatty acids are Omega-3, Omega-6, and Omega-9.

Omega-3 and Omega-6 fatty acids are essential fatty acids (EFA) because unlike other fatty acids, our body is not able to make them. Omega-9 fatty acids can be produces in out body.

These EFA are involved more specifically in regulation of blood pressure, cardiovascular health and others.

I have looked and have not found any studies regarding any relationship (positive or negative) associating Duodenal Switch and Omega Fatty acids.

I would however make some educated guesses here: The fact is that the lipid profile improves significantly with the duodenal switch operation is known. The duodenal switch operation can be performed with limited or not gastrectomy to correct significant lipid disorders that are either non responsive to medical treatments, or in cases where the side effect of statin medications are debilitating.

With this known, I would guess that even if the Omega fatty acids are not absorbed as well at least some of the beneficial effects are not lost. I would recommend that a healthy diet be used to assure adequate absorption of EFA.