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Dietary fat: Know which to choose

Types of fat

There are two main kinds of dietary fats: saturated fat and unsaturated fat. These terms describe the chemical makeup of the fatty acids.

Most foods have a mix of different kinds of fat. But some have higher levels of saturated fats, and others have higher levels of unsaturated fats. Key differences in fats include the following:

  • Saturated fats. Saturated fats are usually solid at room temperature. The most common sources of saturated fats are meats and dairy products.
  • Unsaturated fats. Unsaturated fats are usually liquid at room temperature. Vegetable oils, nuts and fish have mostly unsaturated fats. There are two types of unsaturated fats: monounsaturated and polyunsaturated.