Brenda Khan
Coronary heart disease occurs when the heart's major blood vessels are damaged or diseased, causing a buildup of plaque, a type of fatty deposit, in the arteries. This can lead to serious health problems, including angina and heart attack. While there is currently no cure for coronary heart disease, it is possible to slow down the progression of the disease and reduce the risk of complications through medication and lifestyle changes, including diet and exercise. Dietary modifications can help lower blood pressure and cholesterol, improve endothelial vasomotor dynamics, and reduce the oxidation of low-density lipoproteins, thereby improving overall health and reducing the risk of heart attack, stroke, or cardiac arrest.
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What You'll Learn
Lowering LDL cholesterol levels
Coronary artery disease is caused by a buildup of plaque in the arteries, which reduces blood flow to the heart. While there is no cure, medication and lifestyle changes can help to slow the progression of the disease and reduce the risk of complications like heart attacks.
LDL cholesterol, also known as "bad" cholesterol, contributes to this buildup of plaque. Lowering your LDL cholesterol levels can be achieved through a combination of dietary and lifestyle changes. Here are some ways to do so:
Dietary Changes:
- Reduce Saturated Fats: Saturated fats, found in meat, dairy products, chocolate, baked goods, and deep-fried and processed foods, raise LDL levels. Limit your consumption of these foods and opt for lean meats, nuts, and unsaturated oils like canola, olive, and safflower oils.
- Increase Omega-3 Fatty Acids: Eating fish two to three times a week can lower LDL. Fatty fish like salmon, tuna, and mackerel are rich in omega-3s, which directly lower LDL and protect your heart by preventing abnormal heart rhythms.
- Choose Healthier Fats: No more than 25-35% of your daily calories should come from dietary fats, and less than 7% from saturated fat. Avocado oil and olive oil are examples of healthier fats.
- Increase Plant Stanols and Sterols: These substances prevent your body from absorbing cholesterol. Aim for 2 grams per day, found in whole grains, nuts, legumes, and certain enhanced foods like orange juice, margarine, and bread.
- High-Fiber Foods: Beans, oats, whole grains, and fruits and vegetables that are high in fiber can lower LDL. A bowl of oatmeal or oat-based cereal for breakfast is a good start.
Lifestyle Changes:
- Exercise: Incorporate daily exercise into your routine. Joining a community or group can help you stay motivated and improve your mental health.
- Stress Management: Managing stress is an important aspect of improving heart health.
- Medication: In addition to dietary changes, taking a statin and low-dose aspirin, with your doctor's approval, can help manage cholesterol levels.
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Reducing plaque build-up
While it is not possible to make plaque disappear, it is possible to reduce plaque build-up in your arteries through a combination of medication and lifestyle changes.
Medication
Statins are a common medication used to reduce low-density lipoprotein (LDL) cholesterol levels. LDL cholesterol is known as "bad" cholesterol because it contributes to plaque formation. Statins block the liver enzyme that promotes cholesterol production.
Lifestyle Changes
Diet
Adopting a heart-healthy diet is one of the most important things you can do to keep your arteries clear. A heart-healthy diet includes:
- A variety of fiber-rich fruits, vegetables, whole grains, and legumes
- Healthy fats, such as polyunsaturated fatty acids (PUFA) and monounsaturated fatty acids (MUFA), found in avocados, nuts, fish, olive oil, and other plant-based oils
- Limited amounts of saturated fat, as it has been linked to an increase in LDL cholesterol
Exercise
Staying physically active through regular exercise can improve your cardiovascular health and help prevent cardiac issues.
Stress Management
In addition to diet and exercise, managing stress is an important part of reducing plaque build-up.
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Benefits of a plant-based diet
A plant-based diet offers numerous health benefits. Firstly, it helps maintain a healthy weight, which is crucial for reducing the risk of cancer. Plant-based diets are typically high in fibre and low in fat, promoting weight loss and reducing inflammation and hormonal imbalances caused by excess weight.
Secondly, a plant-based diet improves heart health and can even help to reverse coronary artery disease. This is achieved by reducing plaque buildup in the arteries, which can lead to chest pain, shortness of breath, and an increased risk of heart attack. The Mediterranean diet, a well-known plant-based approach, has been shown to reduce the risk of heart disease, metabolic syndrome, and high blood pressure.
Thirdly, a plant-based diet strengthens the immune system, providing essential nutrients, vitamins, and minerals that are not easily obtained from other food sources. Plants contain antioxidants that keep cells healthy and support the body's defence against germs and microorganisms, thereby reducing the risk of cancer.
Additionally, plant-based diets are associated with a reduced risk of other diseases, including stroke, diabetes, and certain types of cancer, such as colon, breast, and prostate cancer. They have also been linked to improved mental health and a decreased risk of frailty in older adults.
Finally, plant-based diets are cost-effective and low-risk interventions that can lower body mass index, blood pressure, and cholesterol levels. They are also environmentally sustainable, as they require fewer resources and produce less pollution than diets high in animal products.
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Autopsies of people who starved
While coronary artery disease is extremely common, it can be addressed with diet and lifestyle changes. Coronary heart disease occurs when the heart's major blood vessels become damaged or diseased, with a buildup of plaque causing the arteries to narrow or harden. This can reduce blood flow to the heart, leading to chest pain, shortness of breath, and an increased risk of a heart attack.
Some of the best evidence that coronary artery disease is reversible comes from autopsies of individuals who experienced prolonged starvation during World War II. These autopsies revealed minimal to no atherosclerosis in the coronary arteries. Atherosclerosis returned as their diets "improved" post-war, indicating that extreme dietary changes can cause atherosclerosis to diminish.
Autopsies of individuals who starved, either due to food emergencies or self-starvation, often list the cause of death as infections, pneumonia, measles, dysentery, dehydration, or heart failure. For instance, over 100 bodies, mostly children, were recovered from a cult in Kenya where members had starved themselves to death. In contrast, starvation deaths represent a minuscule percentage of worldwide fatalities each year, with malnutrition contributing to a far greater number of deaths, especially in children and susceptible adults.
To reverse coronary artery disease, Dr. Dean Ornish recommends a "reversal diet," consisting primarily of vegetarian meals with no more than 10% of calories from fat and less than 5 milligrams of cholesterol daily. This is complemented by daily exercise, stress management, and group support.
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Exercise and diet
While coronary artery disease (CAD) cannot be completely reversed, certain lifestyle changes, including diet and exercise, can help to slow down the progression of the disease and reduce the risk of complications.
Diet
Diet is an important part of managing CAD. A balanced diet that includes fruits, vegetables, whole grains, lean protein, and healthy fats is key. This can help to lower blood pressure and cholesterol, improving overall health and reducing the risk of complications like heart attack, stroke, or cardiac arrest.
Some doctors recommend a "reversal diet", which is mostly vegetarian and delivers no more than 10% of calories from fat and fewer than 5 milligrams of cholesterol per day.
Exercise
The heart is a muscle, and like any other muscle, it becomes stronger and healthier with regular exercise. Exercise helps the heart pump more blood through the body and continue working efficiently with little strain. It also keeps arteries and other blood vessels flexible, ensuring good blood flow and normal blood pressure.
According to the American Heart Association, exercising for 30 minutes a day, five days a week will improve heart health and reduce the risk of heart disease. This can include activities such as climbing stairs, playing sports, walking, jogging, swimming, or biking.
Multiple studies have shown that physical activity reduces the risk of CAD. For example, a meta-analysis of 52 exercise training trials found reductions in triglyceride and LDL (“bad”) cholesterol levels. Additionally, a review published in Circulation found that people who engaged in 150 minutes of moderate-intensity leisure activity per week had a 14% lower risk of coronary heart disease than those who did no exercise.
It is important to note that some forms of exercise may not be suitable for everyone, and it is always best to check with a doctor before starting an exercise program.
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Frequently asked questions
Coronary artery disease is caused by a buildup of plaque in the heart's arteries, which can lead to serious health problems such as angina and heart attacks. While there is no cure for this disease, it is possible to slow down its progression and improve overall health through diet and lifestyle changes.
Lowering your LDL cholesterol level will help keep plaque from building up in your arteries. This can be achieved by switching from saturated and polyunsaturated fats to monounsaturated fats and n-3 fatty acids, as well as increasing your intake of fruits and vegetables. A low-fat, plant-based diet supplemented with fat-rich foods of plant origin has been shown to reverse coronary artery disease.
Yes, in addition to diet changes, it is recommended to incorporate an exercise program, stress management techniques, and to quit smoking.
It is important to talk to your doctor about an appropriate exercise program and to monitor your cholesterol and lipid levels. Brief discussions with your doctor can help influence your food choices and ensure that your diet and lifestyle changes are on the right track.
