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Cooking oils are extracted from plant sources like nuts, olives, and seeds, each of which imparts its own flavor. Those high in monounsaturated fats (typically good sources of vitamin E) and polyunsaturated fats (like omega-3s) don’t raise and may even lower LDL (“bad”) cholesterol; choosing them is the first step in lowering your risk of heart disease.

Learn about different types of oils.

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