A performance nutritionist explains which foods and small routine changes can help reduce LDL, boost HDL and protect your heart
The conversation about cholesterol can feel technical, but at its heart the idea is straightforward: your body needs cholesterol, yet too much of it in the wrong places raises cardiovascular risk. Abby Coleman, a performance nutritionist at The Edge human performance lab, highlights two central concepts to keep in mind: LDL and HDL.
LDL refers to low-density lipoproteins, often called the “bad” cholesterol because excess quantities can deposit along artery walls and form plaques. Conversely, HDL stands for high-density lipoproteins and is generally protective because it helps shuttle excess cholesterol away from arteries toward the liver for disposal.
Understanding the roles of LDL and HDL helps when choosing foods and habits that affect those numbers. Rather than treating cholesterol as a single villain, think of it as a balance: reduce what promotes plaque and support what removes it.
Nutrition and daily routine both play parts—the right dietary fats, sufficient fibre, beneficial plant compounds and small lifestyle adjustments all combine to lower overall risk of heart disease and stroke.
Fats that lower LDL and support heart function
Not all fats behave the same in the body. Foods rich in monounsaturated fats and polyunsaturated fats have been shown to help lower LDL levels when they replace saturated or trans fats in the diet. Practical choices include oily fish such as salmon and mackerel, avocados, a variety of nuts like walnuts and almonds, and seeds such as sunflower and pumpkin. Using olive oil in place of butter or lard is a simple swap that shifts the overall fat profile of meals toward the heart-friendly end of the spectrum. These fats also support general cardiovascular function and can be incorporated into everyday recipes.
Smart swaps and portion ideas
Small substitutions add up: choose grilled fish instead of fried, mash avocado on toast in place of butter, sprinkle a handful of nuts over porridge or salads. For those who eat meat, consider replacing fattier cuts with leaner proteins like chicken, turkey or fish, reserving pork, lamb or duck for occasional meals. These changes reduce intake of saturated fats while keeping meals satisfying and nutrient dense.
Fibre, antioxidants and plant compounds that help lower LDL
Soluble fibre plays a specific role in cholesterol control because it binds with cholesterol in the gut and helps reduce absorption into the bloodstream. Good sources include oats, barley, beans, lentils and certain fruits like apples and citrus. Swapping refined carbohydrates for wholegrains such as brown rice or quinoa increases fibre intake while stabilizing blood sugar. In addition, antioxidants from a wide range of fruits and vegetables support vascular health, and polyphenols—found in grapes, green tea and moderate amounts of dark chocolate—provide extra protective effects for the heart.
Plant stanols and sterols: a targeted tool
Plant stanols and sterols are naturally occurring compounds that resemble cholesterol structurally and can reduce LDL by blocking some cholesterol absorption in the gut. They appear in nuts and seeds and are added to certain fortified products such as some yoghurts and spreads. Including these foods as part of a balanced eating plan can lower LDL modestly, especially when paired with other dietary improvements like increased soluble fibre and reduced saturated fat intake.
Lifestyle measures that complement dietary changes
Diet alone rarely tells the whole story. Lifestyle changes such as quitting smoking and increasing daily movement are powerful complements to nutritional strategies. Regular physical activity—even brisk walking most days—can raise HDL and support healthier lipid ratios. Maintaining a healthy weight, limiting highly processed foods and refined carbohydrates, and avoiding trans fats also help reduce the likelihood of plaque formation. These are practical, evidence-based steps that reduce cardiovascular risk beyond what food changes can achieve alone.
Before making major dietary or supplement changes, it is sensible to consult a healthcare professional and check blood lipid levels. A targeted plan based on personal test results will be more effective than one-size-fits-all advice. With mindful food choices—emphasizing unsaturated fats, soluble fibre, plant stanols and sterols and antioxidant-rich produce—alongside realistic lifestyle adjustments, many people can shift their cholesterol profile in a heart-protective direction.
