cholesterol self care basics

Overview

Cholesterol is a waxy, fat-like substance that your body needs to build healthy cells. But having too much of a certain type of cholesterol can raise your risk of heart disease and stroke. High cholesterol means you have more cholesterol in your blood than is healthy. It is a common condition that often has no symptoms, so you may not know you have it until a blood test shows it. Managing your cholesterol is about lowering the 'bad' LDL cholesterol and raising the 'good' HDL cholesterol through lifestyle changes and, if needed, medication.

Yes, high cholesterol is very common. According to the UK National Health Service, around two in five adults have high cholesterol.

High cholesterol can affect anyone, but it becomes more common as you get older. You are also more likely to have it if you are overweight, eat a diet high in saturated fat, do not exercise enough, smoke, or have a family history of high cholesterol or heart disease.

Symptoms

Common symptoms

• High cholesterol itself does not cause symptoms. Most people feel completely well and only discover they have high cholesterol after a blood test.
• If high cholesterol leads to narrowed or blocked arteries, you may notice chest pain, leg pain when walking, or other signs of heart or blood vessel problems — but these are complications, not early symptoms.

Symptoms in children

• High cholesterol rarely causes symptoms in children. However, a rare inherited condition called familial hypercholesterolemia can cause fatty bumps on the skin or around the eyes, or a grey-white ring around the cornea of the eye.

Symptoms in older adults

• High cholesterol itself still has no symptoms in older adults. However, as arteries may have been narrowing over many years, older adults might experience symptoms of heart disease, such as chest discomfort or shortness of breath.

Causes

Main causes

• Eating foods high in saturated and trans fats (such as fatty meats, full-fat dairy, and fried foods)
• Genetics — high cholesterol can run in families
• Being physically inactive or spending long periods sitting
• Smoking, which can damage blood vessels and make it easier for cholesterol to stick
• Diabetes or high blood pressure, which are linked to unhealthy cholesterol levels

Risk factors

• Family history of high cholesterol or early heart disease
• Age — cholesterol levels tend to rise as you get older
• Obesity or being overweight, particularly around the waist
• A diet low in fruits, vegetables, and fiber but high in processed foods
• Heavy alcohol use
• Having certain medical conditions, such as hypothyroidism or kidney disease
• Being of South Asian or African-Caribbean descent, as cholesterol levels can be higher and heart disease risk is increased

When to see a doctor

See a doctor urgently if:

• If you experience any signs of a heart attack or stroke — such as chest pain, sudden weakness on one side of the body, or difficulty speaking — call your local emergency number immediately. Do not wait.
• If you have new or worsening chest discomfort or shortness of breath with activity, contact a healthcare provider the same day.

Book a routine appointment if:

• If you are over 40, ask your GP for a cholesterol test as part of an NHS Health Check (in the UK) or a routine health check.
• If you have a family history of high cholesterol or early heart disease, talk to your doctor about earlier screening.
• If you are managing conditions like diabetes or high blood pressure, have your cholesterol checked regularly as part of your care plan.

Diagnosis

High cholesterol is diagnosed with a blood test. Usually the test measures your total cholesterol, LDL ('bad') cholesterol, HDL ('good') cholesterol, and triglycerides (another type of fat in the blood). You may be asked not to eat for a few hours beforehand, though modern tests often allow eating beforehand. Your doctor will interpret the results based on your age, sex, and other risk factors.

Tests that may be done

• Total cholesterol test — measures all the cholesterol in your blood
• LDL cholesterol test — measures the 'bad' cholesterol that can build up in arteries
• HDL cholesterol test — measures the 'good' cholesterol that helps clear cholesterol
• Triglyceride test — measures a type of fat that also increases heart risk

What to expect at your appointment

A simple blood sample is taken from your arm. You may feel a brief sting. Results usually come back within a few days. Your doctor will explain what your numbers mean and what to do next. If your levels are high, they will talk with you about lifestyle changes and may offer medication to lower your risk.

Treatment

Treatment for high cholesterol focuses on lowering your risk of heart attack and stroke. For most people, the first step is changing daily habits: eating a heart-healthy diet, being more active, losing weight if needed, quitting smoking, and reducing alcohol. If lifestyle changes are not enough, or if your risk is high, doctors may prescribe a cholesterol-lowering medicine. You and your doctor will decide on a target based on your personal risk.

Self-care at home

• Eat more fruits, vegetables, whole grains, and legumes, and choose lean proteins like poultry, fish, and plant-based proteins.
• Replace saturated fats (like butter, lard, and fatty meats) with unsaturated fats such as olive oil, avocado, nuts, and seeds.
• Aim for at least 150 minutes of moderate-intensity exercise each week — for example, brisk walking, cycling, or swimming.
• If you smoke, get help to quit — this is one of the most powerful changes you can make.
• Limit alcohol to the recommended level (in the UK, no more than 14 units per week, with several alcohol-free days).
• Check food labels for saturated fat, trans fats, and salt, and choose lower-fat options.

Medical treatments

If lifestyle changes are not enough, your doctor may prescribe a medicine that lowers cholesterol. The most common type is a class of medicines called statins. These pills work by reducing the amount of cholesterol your liver makes. Other types of medicines may be used if statins are not suitable. Your doctor will explain how to take your medicine, what possible side effects to watch for, and that you should keep taking it even if you feel well — high cholesterol doesn't cause symptoms, but the medicine is working to protect your heart.

When is surgery considered?

Surgery is rarely needed for high cholesterol itself. It may be recommended if you already have severe narrowing of the arteries (for example, a blocked heart artery) that requires a procedure such as angioplasty or bypass. A specialist will decide if these interventions are right for you. Usually, cholesterol-lowering medicine and lifestyle changes are the mainstay.

Living with this condition

Living with high cholesterol means making heart-healthy choices a regular part of your routine. Take any prescribed medicine exactly as directed, keep your follow-up appointments, and have your cholesterol rechecked as your doctor recommends. Build small, sustainable habits — like a daily walk or swapping one unhealthy snack for fruit — and be patient with yourself.

Lifestyle tips

• Stay active throughout the day — take the stairs, break up long periods of sitting, and find activities you enjoy.
• Eat a varied, plant-heavy diet and plan meals ahead to avoid unhealthy convenience foods.
• Learn to read nutrition labels to spot saturated fats, trans fats, and salt.
• Manage stress with activities like deep breathing, meditation, or a hobby that relaxes you.
• Get enough sleep — poor sleep is linked to higher cholesterol and heart risk.

Diet and exercise

A heart-healthy diet includes plenty of fruits, vegetables, whole grains, nuts, seeds, and legumes. Try to limit red meat, processed meats, full-fat dairy foods, and foods with coconut or palm oil. When you cook, use olive or rapeseed oil instead of butter or lard. For exercise, aim for 150 minutes of moderate activity per week — you can break it into 10-minute chunks. If you are not active now, start slowly and build up with your doctor's advice.

Mental health and emotional wellbeing

Being diagnosed with high cholesterol can feel worrying, and you may feel anxious about your heart health. It is normal to feel this way. Stress and anxiety can actually raise blood pressure and make it harder to stick to healthy habits. Talk to your doctor if you feel overwhelmed. Practising relaxation techniques, staying connected to loved ones, and focusing on the positive steps you can take can all help.

Prevention

High cholesterol can often be prevented or delayed through a healthy lifestyle. That means a balanced diet low in saturated fats, regular exercise, maintaining a healthy weight, not smoking, and limiting alcohol. If you have a strong family history of high cholesterol, you may still develop it, but early detection and treatment can prevent complications.

Vaccines

There is no vaccine that prevents high cholesterol. However, staying up to date with recommended vaccinations (such as flu and COVID-19) is important for protecting your overall heart and circulation health, because infections can put extra stress on your body.

Screening programmes

In the UK, adults aged 40 and over can have a free NHS Health Check that includes a cholesterol test. If you have risk factors like diabetes, high blood pressure, or a family history of heart disease, your doctor may recommend testing earlier. Regular screening helps you know your numbers and take action before problems arise.

Complications

If left untreated

• Heart attack — when a cholesterol-containing plaque blocks a heart artery
• Stroke — when a plaque blocks or slows blood flow to part of the brain
• Peripheral artery disease — narrowing of arteries in the legs, causing pain and poor circulation
• Angina — chest pain or discomfort caused by narrowed heart arteries
• Kidney disease — due to narrowed arteries that supply the kidneys

Long-term outlook

The outlook for people with high cholesterol is generally very good. With the right combination of healthy habits and, if needed, medication, you can significantly lower your cholesterol and your risk of heart attack and stroke. Many people with high cholesterol live long, active lives. The key is to take it seriously and work closely with your healthcare team — small changes really can make a big difference.

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