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Fish is another good alternative to high-fat meats. Some types of fish — such as cod, tuna or halibut — have less total fat, saturated fat and cholesterol than do meat and poultry. And certain types of fish are heart healthy because they're rich in omega-3 fatty acids. These fats may help lower triglyceride levels and may reduce your risk of sudden cardiac death. Omega-3 fats are most abundant in fatty, cold-water fish, such as salmon, mackerel and herring.