n-3 Polyunsaturated Fatty Acids in Obesity

Inclusion Criteria: * Non-diabetic morbidly obese patients (BMI \> 40 kg/m2) supposed to undergo bariatric surgery * Age 20-65 yrs Exclusion Criteria: * Acute illness within the last two week * Known diabetes mellitus or current anti-diabetic medication * Acquired immunodeficiency (HIV infection) * Hepatitis or other significant liver disease * Severe or untreated cardiovascular, renal, pulmonary disease * Untreated or inadequately treated clinically significant thyroid disease * Anemia * Active malignant disease * Inborn or acquired bleeding disorder including warfarin treatment * Pregnancy or breast feeding * Drug intolerability that prohibits the use of the study drug