Food

Cholesterol fighting foods

Dietitian and nutritionist Lauren Atkins shares what to eat, what to limit and how small changes can help.

Written by Fiona Maher

When it comes to managing cholesterol, there’s no single miracle food. “Think of cholesterol fighting foods as a team rather than individual champions,” says Lauren Atkins, Co-Founder and Co-Director of OnCore Nutrition. “No single player wins the match, it’s the combination that makes the difference.”

Her winning line-up includes oats and barley, legumes, nuts, salmon and extra virgin olive oil.

So, what is cholesterol?

Cholesterol often gets painted as the villain, but your body actually needs it. Your liver makes most of it, with a small amount coming from the foods you eat. It plays an important role in helping our bodies build cells, produce hormones, make vitamin D and helps create the bile acids that help you digest fats. The key however, is balance. When certain types of cholesterol get too high, they can build up in your arteries and make it harder for blood to flow.

The two main types of cholesterol

There are two main players:

  • Low Density Lipoprotein (LDL), often called 'bad' cholesterol, carries cholesterol around your body. Too much of it can lead to build-up in your arteries.
  • High Density Lipoprotein (HDL), often referred to as ‘good’ cholesterol, helps clear excess cholesterol and returns it back to the liver.

Atkins often asks her clients to picture a busy city with rubbish collectors. “LDL is like a delivery truck that occasionally drops litter on the footpath when it is overloaded. HDL is the clean-up crew that follows behind, sweeping litter off the street and back to the depot. You want a well-staffed clean-up crew and carefully loaded delivery trucks.”

What are the risk factors associated with high cholesterol?

Persistently high LDL cholesterol can be a risk factor for certain heart disease. Over time, it can contribute to:

  • Heart attack
  • Stroke
  • Peripheral artery disease (reduced blood flow to the legs and feet)

But cholesterol is just one piece of the puzzle. Your overall cardiovascular risk also depends on things like age, blood pressure, family history and lifestyle, so it’s always looked at as part of the bigger picture.

The tricky part? Most of the time there are no symptoms.

High cholesterol doesn’t usually come with warning signs. That’s why regular check-ups with your GP are so important, you won’t feel it building up.

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Cholesterol fighting foods 

When it comes to managing cholesterol, what’s on your plate can have a real impact. Here are Lauren Atkins’ top suggestions:

  • Oats and barley are rich in beta-glucan (a type of soluble fibre) that can help to reduce LDL cholesterol.
  • Legumes like lentils, chickpeas, kidney beans and split peas are packed with soluble fibre and plant protein, and have been linked to meaningful reductions in LDL.
  • Nuts, especially almonds and walnuts, provide healthy unsaturated fats, fibre and plant compounds that support better cholesterol levels.
  • Avocado is a source of monounsaturated fats that can help lower LDL when used in place of saturated fats.
  • Fatty fish like salmon, sardines and mackerel are rich in omega-3s, which support overall heart health.
  • Extra virgin olive oil is high in monounsaturated fats and backed by strong evidence for cardiovascular benefits.
  • Soy-based foods such as tofu, provide protein and plant compounds that may help modestly reduce LDL, especially when they replace higher saturated fat foods.

Can small dietary swaps make a difference to cholesterol?

Absolutely. Focus on replacing saturated fat with unsaturated fat and increasing your soluble fibre intake. Here are a few of Lauren Atkins’ suggested swaps:

  • Butter for olive oil when cooking
  • Processed meats for legumes, fish or lean protein
  • Swap white bread for oat-based, rye-based or grain-bread options with visible seeds or wholegrain texture.
  • Biscuits for a handful of nuts
  • Refined snacks for hearty soups or grain-based salads.

What about supermarket products that claim to lower cholesterol?

Some supermarket products, including certain margarines and cereals, do have evidence behind them, but there’s a catch. To see a cholesterol-lowering benefit, they generally need to be eaten regularly and in specific amounts, which can be tricky for the average shopper to understand.

Standard margarines are usually lower in saturated fat than butter, making them a reasonable swap, but it’s still worth checking the nutrition panel for ingredients like added salt. For a more whole-food option, avocado on toast is hard to beat, providing healthy fats, fibre and nutrients that support heart health.

What should you go easy on?

Try limiting foods high in saturated and trans fats, including:

  • Fatty and processed meats like bacon, salami, sausages and full-fat mince
  • Large amounts of full-fat dairy like butter, cream and cheese
  • Coconut and palm oils, which are high in saturated fat
  • Ultra-processed snacks like pastries, biscuits and fried takeaway foods
  • Trans fats (now less common in Australia, but still found in some imported and deep-fried foods).

The thinking has shifted from cutting out ‘bad’ foods to focusing on the bigger picture. “A healthy diet is about the overall pattern, not obsessing over one food,” says Atkins. “There are no ‘bad’ foods, it’s what you do most of the time that counts, not any single meal.”

It’s not just about food.

Lifestyle plays a big role too. Regular movement, not smoking, managing blood sugar and maintaining a healthy weight all support better cholesterol levels.

For some people, medication may also be part of the plan. It’s about finding what works for you with the support of your GP.

The takeaway

If there’s one thing to stick with, it’s this: small, smart swaps add up.

Choose wholegrain breads, cereals, pasta and rice, swap in healthier fats where you can, and bring legumes into your meals a few times a week. These are Atkins’ top three tips, simple, doable, and backed by evidence.

When it comes to managing your cholesterol, it’s not about being perfect, it’s about building small, consistent habits that your body will thank you for over time.

Frequently asked questions

Does salt affect cholesterol? 

Not directly, says Atkins. Salt mainly impacts blood pressure, but many salty foods such as chips and fast food are also high in saturated fat, so they can affect cholesterol indirectly. 

Is sugar bad for cholesterol? 

Sugar doesn’t directly raise LDL either, but too much can increase triglycerides and lower HDL. 

Is milk chocolate bad for cholesterol?  

Milk chocolate contains saturated fat (primarily from cocoa butter and dairy) and added sugar, so regular, large amounts are not ideal for cholesterol management. Small amounts of dark chocolate with a higher cocoa content are less concerning and may even have modest cardiovascular benefits through flavanol content.

Are prawns full of cholesterol?  

Prawns are often thought of as a high-cholesterol fish to avoid, but they’re actually low in saturated fat, which matters more. While they do contain dietary cholesterol, current evidence1 shows it has minimal impact on LDL for most people, compared to saturated fat.

Are chia seeds good for lowering cholesterol? 

Chia seeds are a good source of soluble fibre and omega-3s, which makes them a worthwhile addition to a heart-healthy diet. But Atkins considers them more of a support act than a star player. 

Our expert: Lauren Atkins, Accredited Practising Dietitian

Lauren is an Accredited Practising Dietitian with a particular interest in oncology and haematology. She graduated with a Bachelor of Nutrition and Dietetics at Monash University with the student prize for Highest Academic Achievement and DAA prize for Excellence in Professional Practice. Lauren went on to complete a Graduate Certificate in Paediatric Nutrition and Dietetics. She has experience in both adult and paediatric nutrition and dietetics, having spent her career working at Peter MacCallum Cancer Centre, Epworth Health and The Royal Children’s Hospitals in Melbourne. She has vast experience in managing nutrition-related difficulties in oncology from diagnosis through to survivorship. She has a particular interest in education of individuals and clinicians to improve nutrition and was a lead clinician in the development of the Malnutrition in Cancer eLearning Program for multidisciplinary health professionals. 
 

Written by Fiona Maher

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How we reviewed this article

This content was reviewed by a Medibank healthcare professional. Medibank has strict sourcing guidelines and relies on peer-reviewed studies and information from Australian government and health peak bodies.