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Dietary fats

6-minute read

Key facts

  • Dietary fats are an important part of your diet — they are an energy-dense nutrient and help you absorb vitamins A, D, E and K.
  • There are different types of fats, including unhealthy saturated fats and trans fats, and unsaturated fats that are healthier for you.
  • Cholesterol is a fat found in foods and in your blood — 'good' cholesterol is called HDL cholesterol and 'bad' cholesterol is called LDL cholesterol.
  • 'Bad' cholesterol can increase your risk of heart disease.
  • Unsaturated fats are found in foods like fish, avocado, nuts and seeds, while saturated fats are found in fast foods, processed foods, meats, pastries and butter.

What are fats?

Fats are an essential part of your diet. They are important for your health. Fats are a source of energy and help you absorb vitamins A, D, E and K.

Fats are an energy dense nutrient. This means there is a lot of energy (kilojoules) in a small amount of food.

There are different types of fats, including saturated fats, unsaturated fats, trans fats and cholesterol. Some are healthier for you than others.

Are fats good for me?

Unsaturated fats are an important part of your healthy diet. You can reduce your risk of heart disease, stroke and lower your cholesterol, when you swap foods high in saturated fats for foods high in unsaturated fats. Unsaturated fats are also good for your skin, eyes and brain.

There are 2 main types of unsaturated fats:

You can find unsaturated fats in these foods:

Unhealthy fats are saturated and trans fats. Saturated fats are normally solid at room temperature. Trans fats are unsaturated fats that have been processed. They behave like saturated fats.

Saturated fats and trans fats raise levels of 'bad' cholesterol, reduce your levels of 'good' cholesterol and increase your risk of heart disease.

You will find saturated fats in these foods:

You can find trans fats in these foods:

What is cholesterol?

Cholesterol is a type of fat found in your blood that your body needs to build cells and produce certain hormones. It comes from two sources: your liver naturally produces it, and it's also found in some foods such as meat and dairy products.

While your body needs some cholesterol to function well, too much of it can build up in your arteries, increasing the risk of heart disease and stroke.

There are two main types: "bad" cholesterol (LDL), which can clog arteries, and "good" cholesterol (HDL), which helps remove LDL from your blood.

If you have too much 'bad' LDL cholesterol in your blood, you can increase your risk of heart disease. Eating large amounts of saturated and trans fats increase your LDL cholesterol.

Read more about cholesterol.

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How can I include healthy fats in my diet?

To stay healthy, fats should make up 35% of the energy you eat. Less than 10% of the total energy (kilojoules) you eat or drink should come from saturated and trans fat.

Choose products that are higher in polyunsaturated and monounsaturated fats. Avoid foods that contain saturated fats and 'hydrogenated oils' or 'partially hydrogenated vegetable oils' because these contain trans fats.

Learn how to check food labels.

To learn more about how to make healthy food choices, ask your GP or a dietitian (an expert in food and nutrition).

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Healthy-eating tips

Here are some tips to replace unhealthy fats with healthy fats:

Resources and support

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Looking for information for Aboriginal and/or Torres Strait Islander people?

Read the Aboriginal and Torres Strait Islander Guide to Healthy Eating.

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