HealthInfo Canterbury
Cholesterol is a type of fat called a lipid, which is made mainly in your liver. Your body needs it to function normally.
Having very high levels of cholesterol (called hyperlipidaemia) can make your blood vessels narrow, reducing blood flow and increasing your chance of getting a blood clot. This can lead to serious health problems, such as atherosclerosis (narrowing of the arteries), heart attack, stroke, transient ischaemia attack (TIA) and peripheral vascular disease.
High cholesterol can be caused by being overweight, having an unhealthy diet, smoking, and diabetes. High cholesterol can also run in families, so some people inherit it.
We eat different types of fats, and they have different effects on our cholesterol levels. Eating a lot of unhealthy fat (fat on meat, chicken skin and full-fat dairy products, butter and takeaway foods) can lead to higher cholesterol.
Eating more healthy fats (vegetable oils, avocados, nuts, seeds, and fish) can help to lower your cholesterol levels and reduce your risk of heart attacks and strokes.
As well as watching what you eat, aiming for a healthy weight, keeping physically active, and reducing alcohol can help to improve your cholesterol levels. Along with these lifestyle changes, cholesterol-lowering medicines can be an effective way to help bring down your cholesterol and reduce your risk of heart attacks and strokes.
If you've been told you have high cholesterol and a higher risk of heart attack or stroke, you can create an action plan for heart health. The Heart Foundation booklet Lowering your risk of heart attack and stroke has an action plan that you can work through with your doctor or practice nurse. It will help you work out the steps you can take towards a healthier heart.
The Heart Foundation Guide to eating for a healthy heart gives advice on eating for a healthy heart. Posters of the guide are available in a variety of languages, including Te Reo Māori, Hindi, Chinese, and Pacific languages.
For more ideas on how to reduce your risk of heart attack and stroke, read the Heart Foundation's advice on managing your risk.
This factsheet explains how to get your cholesterol checked, and what to do about it. You can also read the page on Understanding your cholesterol results.
HealthInfo recommends the following pages
A recent research study questions the benefits of omega-3 fats for reducing heart disease.
Simple steps you can take to add healthier options to your meals. Contains a simplified version of the Healthy Heart visual food guide.
Also available in Te Reo Māori, Hindi, and Chinese.
The facts about alcohol, butter, coconut, eggs, dairy and salt and your heart health.
A fact sheet that shows you how to use your hand size to judge portion size.
This free smartphone app can help you to make healthier food choices.
Guidelines to help you choose the healthiest options in the supermarket.
Healthy recipes in many different styles, including Asian, Pacific, meals just for kids, and meals for people with diabetes.
Free cookbooks to view and download online, or order free hard-copies.
On the next page: Cholesterol-lowering medicines
Written by HealthInfo clinical advisers. Last reviewed September 2018. Last updated November 2018.
Review key: HIHCH-53809