Foods that can help lower triglyceride levels include: whole-grain products such as oats, barley, corn, rice, wheat, lentils, and whole wheat pasta; omega-3 rich fish like salmon, tuna, sardines, mackerel, herring, and trout; unsaturated vegetable oils such as olive oil, canola oil, hazelnut oil, and avocado oil; and nuts like almonds, walnuts, and hazelnuts. Additionally, fiber-rich vegetables and fruits such as beans, carob, cabbage, purslane, broccoli, and lettuce are also effective. Certain herbs and teas like sage, sunflower, thyme, and mint are also known to have beneficial effects on triglyceride levels.