Men and women with triglycerides ( TGs ) 500 mg/dL , but < 2000 mg/dL , took control ( olive oil [ OO ] 4 g/d ; n = 99 ) , OM3-FFA 2 g/d ( plus OO 2 g/d ; n = 100 ) , OM3-FFA 3 g/d ( plus OO 1 g/d ; n = 101 ) , or OM3-FFA 4 g/d ( n = 99 ) capsules for 12 weeks in combination with the National Cholesterol Education Program Therapeutic Lifestyle Changes diet .