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Artificial trans fats can be formed when oil goes through a process called hydrogenation, which makes the oil more solid (known as hardening). This type of fat, known as hydrogenated fat, can be used for frying or as an ingredient in processed foods.
Artificial trans fats can be found in some processed foods such as biscuits and cakes, where they are sometimes used to help give products a longer shelf life. However, in recent years many food manufacturers have removed trans fats from their products.
Trans fats can also be found naturally in some foods at low levels, such as those from animals, including meat and dairy products.
Consuming a diet high in trans fats can lead to high cholesterol levels in the blood, which can cause health conditions such as heart disease, heart attacks and strokes. However, most people in the UK don't eat a lot of trans fats.
We eat about half the recommended maximum of trans fats on average, which is why the more commonly eaten saturated fat is considered a bigger health risk. For more information, see Is saturated fat bad for me?
If you want to reduce your intake of trans fats, you should:
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