3. Increase the amount of omega-3 fats in your diet. 1  Fish is the best source of omega-3s and you should eat it 2 to 3 times each week. 2  The highest levels of omega-3s are found in mackerel, lake trout, herring, bluefin and albacore tuna, salmon and canned sardines.educe the amount of carbohydrates in your diet, as carbohydrates help your body convert glucose to triglycerides. 1  Choose complex, high-fiber carbohydrates such as whole barley, buckwheat, lentils, oatmeal, brown rice and green leafy vegetables.