Myth: All Cholesterol Is Bad For You
Fact:;Some types of cholesterol are essential for good health. Your body needs cholesterol to perform important jobs, such as making hormones and building cells. Cholesterol travels through the blood on proteins called;lipoproteins. Two types of lipoproteins carry cholesterol throughout the body:
- LDL ,;sometimes called bad;cholesterol,;makes up most of your bodys cholesterol. High levels of LDL cholesterol raise your risk for heart disease and stroke.
- HDL ,;or good;cholesterol,;carries cholesterol back to the liver. The liver then flushes it from the body. High levels of HDL cholesterol can lower your risk for heart disease and stroke.
When your body has too much LDL cholesterol, it can build up in the walls of your blood vessels. This buildup is called;plaque. As your blood vessels build up plaque over time, the insides of the vessels narrow. This narrowing can restrict and eventually block blood flow to and from your heart and other organs. When blood flow to the heart is blocked, it can cause angina or a heart attack.
How Does Dietary Cholesterol Affect Blood Cholesterol
The amount of cholesterol in your diet and the amount of cholesterol in your blood are very different things.
Although it may seem logical that eating cholesterol would raise blood cholesterol levels, it usually doesnt work that way.
The body tightly regulates the amount of cholesterol in the blood by controlling its production of cholesterol.
When your dietary intake of cholesterol goes down, your body makes more. When you eat greater amounts of cholesterol, your body makes less. Because of this, foods high in dietary cholesterol have very little impact on blood cholesterol levels in most people (
16 ).
This is because the general increase in LDL particles typically reflects an increase in large LDL particles not small, dense LDL. In fact, people who have mainly large LDL particles have a lower risk of heart disease .
Hyperresponders also experience an increase in HDL particles, which offsets the increase in LDL by transporting excess cholesterol back to the liver for elimination from the body .
As such, while hyperresponders experience raised cholesterol levels when they increase their dietary cholesterol, the ratio of LDL to HDL cholesterol in these individuals stays the same and their risk of heart disease doesnt seem to go up.
Of course, there are always exceptions in nutrition, and some individuals may see adverse effects from eating more cholesterol-rich foods.
Contrary to popular belief, heart disease is not only caused by cholesterol.
How Can You Prevent High Cholesterol Levels And Coronary Heart Disease
Prevention methods are very much the same as treatment methods. First, dont smoke. If you do smoke, make plans to quit now. Find ways to add physical activity to each of your days. Take steps to keep your weight in a healthy range. Eat well. Consider following the Mediterranean diet. It is the only diet proven to reduce the risk of heart disease. Take care of any other medical conditions you might have by following your healthcare providers advice and instructions. Learn to really relax and calm down.
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Which Foods Are High In Cholesterol
All animal foods contain some cholesterol. But by cutting down on the animal foods that contain saturated fats you will be keeping the cholesterol in your diet in check too.
Foods that contain cholesterol and are high in saturated fat. |
Full fat dairy foods such as milk, cheese, yogurt and cream. |
Animal fats, such as butter, ghee, margarines and spreads made from animal fats, lard, suet and dripping. |
Fatty meat and processed meat products;such as sausages. |
There are some foods which are low in saturated fat but high in cholesterol. These include eggs, some shellfish, liver, liver pate and offal. Most people dont need to cut down on the cholesterol thats found in these foods.
Foods that contain cholesterol but are low in saturated fat. |
Lean meat, especially offal, such as liver, kidney, sweetbreads, heart and tripe ; |
Prawns, crab, lobster, squid, octopus and cuttlefish. |
Eggs . ; |
For people with FH, or who have high cholesterol, or are at high risk of or have cardiovascular disease, you can still eat some of these foods, but you need to be more careful about how often you eat them to ensure youre keeping within the guidelines. For example, you could eat three or four eggs a week, and shellfish such as prawns up to once or twice a week.
You should avoid liver and offal altogether because they are very rich sources of cholesterol.
The table below shows the amount of cholesterol in these types of foods:-
Food |
Myth: Eating Foods With A Lot Of Cholesterol Will Not Make My Cholesterol Levels Go Up
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Fact:;It can be complicated. We know that foods with a lot of cholesterol usually also have a lot of saturated fat. Saturated fats can make your cholesterol numbers higher, so its best to choose foods that are lower in saturated fats. Foods made from animals, including red meat, butter, and cheese, have a lot of saturated fats.
Instead, aim to eat foods with plenty of fiber, such as oatmeal and beans, and healthy unsaturated fats, such as avocados, olive oil, and nuts. Learn more about healthy diets and nutrition at CDCs nutrition, physical activity, and obesity website.
Talk with your health care provider about ways to manage your cholesterol. Learn more about medicines to lower cholesterol.
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Why Is Hdl Good
HDL helps keep your cardiovascular system healthy. It actually aids in the removal of LDL from the arteries.
It carries the bad cholesterol back to the liver, where its broken down and eliminated from the body.
High levels of HDL have also been shown to protect against stroke and heart attack, while low HDL has been shown to increase those risks.
According to the National Institutes of Health , HDL levels of 60 mg/dL and higher are considered protective, while those under 40 mg/dL are a risk factor for heart disease.
Cardiovascular And Circulatory Systems
When you have too much LDL cholesterol in your body it can build up in your arteries, clogging them and making them less flexible. Hardening of the arteries is called atherosclerosis. Blood doesnt flow as well through stiff arteries, so your heart has to work harder to push blood through them. Over time, as plaque builds up in your arteries, you can develop heart disease.
Plaque buildup in coronary arteries can disrupt the flow of oxygen-rich blood to your heart muscle. This may cause chest pain called angina. Angina isnt a heart attack, but it is a temporary disruption of blood flow. Its a warning that youre at risk for a heart attack. A piece of plaque can eventually break off and form a clot or the artery may continue to become narrowed which can fully block blood flow to your heart, leading to a heart attack. If this process occurs in the arteries going to the brain or within the brain it can lead to a stroke.
Plaque can also block the flow of blood to arteries that supply blood to your intestinal tract, legs, and feet. This is called peripheral arterial disease .
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What If I Have High Cholesterol
If a blood test shows you have high cholesterol, talk to your doctor. He or she can give you advice on what you can do to lower your cholesterol like eating less fried food and choosing low-fat or fat-free milk, cheese, and yogurt, and exercising more.
Here are 5 things you can do:
People with high cholesterol might need to take medicine to if these lifestyle changes don’t lower their cholesterol.
What Affects My Cholesterol Levels
A variety of things can affect cholesterol levels. These are some things you can do to lower your cholesterol levels:
- Diet. Saturated fat and cholesterol in the food you eat make your blood cholesterol level rise. Saturated fat is the main problem, but cholesterol in foods also matters. Reducing the amount of saturated fat in your diet helps lower your blood cholesterol level. Foods that have high levels of saturated fats include some meats, dairy products, chocolate, baked goods, and deep-fried and processed foods.
- Weight. Being overweight is a risk factor for heart disease. It also tends to increase your cholesterol. Losing weight can help lower your LDL cholesterol, total cholesterol, and triglyceride levels. It also raises your HDL cholesterol level.
- Physical Activity. Not being physically active is a risk factor for heart disease. Regular physical activity can help lower LDL cholesterol and raise HDL cholesterol levels. It also helps you lose weight. You should try to be physically active for 30 minutes on most, if not all, days.
- Smoking.Cigarette smoking lowers your HDL cholesterol. HDL helps to remove bad cholesterol from your arteries. So a lower HDL can contribute to a higher level of bad cholesterol.
Things outside of your control that can also affect cholesterol levels include:
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Eat To Lower Your Cholesterol
Cholesterol isnt all bad news. Follow these tips to lower your cholesterol, the natural way.
Chances are, youve heard a thing or two about cholesterol. Having high blood cholesterol is a risk factor for developing heart disease.
But did you know that you can reduce your cholesterol level by making smart food choices? Its true!
Cholesterol clarified
Before we get to the details, lets be clear on what were talking about. For years, cholesterol has had a bad rep that it doesnt really deserve. The truth is, we need cholesterol to function. Your body makes most of the cholesterol it needs. The rest comes from foods you eat.
Heres the important thing: Dietary cholesterol found in meat, poultry, eggs and dairy products has less impact on increasing your blood cholesterol level. Foods that contain lots of saturated fat are the true culprits.
Now heres how to make nutritious choices to lower your blood cholesterol.
Keep eating simple
In the last 20 years, the rules on healthy eating have shifted. Super restrictive diets arent sustainable or the healthiest choice. Rather than zeroing in on a single nutrient, nutrition research shows the quality of your diet matters more. A diet filled with the right portions of whole, unprocessed foods can help decrease heart disease and stroke. What does that look like? For a healthy, balanced eating plan:
Cook at home
Choose more fibre
Each of these options will provide you with two grams:
- ½ ripe avocado
How Can I Lower My Cholesterol Level
The first step in reducing your cholesterol is to maintain a healthy, balanced diet. It’s important to keep your diet low in fatty food.
You can swap food containing saturated fat for fruit, vegetables and wholegrain cereals. This will also help;prevent high cholesterol returning.
Other lifestyle changes, such as;taking regular exercise and;giving up smoking, can also make a big difference in helping to lower your cholesterol.
If these measures don’t reduce your cholesterol and you continue to have a high risk of developing heart disease, your GP may prescribe a cholesterol-lowering medication, such as statins.
Your GP will take into account the risk of any side effects from statins. The benefit of lowering your cholesterol must outweigh any risks.
Read more about how high cholesterol is treated
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Safe Blood Cholesterol Levels
Health authorities recommend that cholesterol levels should be no higher than 5.5 mmol per litre if there are no other risk factors present. If there are other cardiovascular risk factors such as smoking and high blood pressure or pre-existing cardiovascular disease, then the aim for the LDL levels would be less than 2 mmol/l. Approximately half of all adult Australians have a blood cholesterol level above 5 mmol/l. This makes high blood cholesterol a major health concern in Australia.
Dietary Cholesterol Food Sources
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Dietary cholesterol is a main steroid from animal tissues. The main food sources include egg yolk, shrimp, beef, and pork, poultry, as well as cheese and butter. According to NHANES data, the top five food sources of cholesterol in the American population are eggs, and mixed egg dishes, chicken, beef, and beef mixed dishes, burgers, and regular cheese . There are two main sources that contribute to and make up the liver cholesterol pool, namely dietary cholesterol , and de novo cholesterol which is synthesized in the liver or extra-hepatic tissue.
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What Is The Cholesterol In Your Food Unpacking Dietary Cholesterol
Many of the fat substances in your body, including cholesterol, are produced naturally this production is determined by your genes and your metabolism, and is likely not something you can change. However, you have more choice in the fats that enter your body through your food. Saturated and trans fats are the main culprits when it comes to increased cholesterol in the bloodstream ;these fats prevent liver cells from effectively removing cholesterol from your blood. Its important to monitor your intake of foods that contain these types of fat. To keep your cholesterol in check, a basic rule of thumb is to avoid saturated and trans fats. Saturated fats mainly come from animal sources of food and trans fats mostly originate from oils through a food processing method called partial hydrogenation. Both trans fats and saturated fats harm the bodys ability to combat heart disease. Learn more about saturated fat, trans fat, and ways to make healthy food choices here.
It is more important to focus on eating less unhealthy fats than to stress about dietary cholesterol ;although moderation with dietary cholesterol is still recommended as your body doesnt need too much cholesterol overall to function.
Why Is High Cholesterol Dangerous
Elevated cholesterol levels are one of the risk factors for heart disease, stroke, and peripheral artery disease. The mechanism involving cholesterol in all three diseases is the same; plaque buildup within arteries decreases blood flow affecting the function of the cells and organs that these blood vessels supply.
- Atherosclerotic heart disease or narrowed coronary arteries in the heart can cause the symptoms of angina, when the heart muscle is not provided with enough oxygen to function.
- Decreased blood supply to the brain may be due to narrowed small arteries in the brain or because the larger carotid arteries in the neck may become blocked. This can result in a transient ischemic attack or stroke.
- Peripheral artery disease describes gradual narrowing of the arteries that supply the legs. During exercise, if the legs do not get enough blood supply, they can develop pain, called claudication.
- Other arteries in the body may also be affected by plaque buildup causing them to narrow, including the mesenteric arteries to the intestine and the renal arteries to the kidney.
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What Does Cholesterol Have To Do With Diabetes
If you are someone with type 1 or type 2 diabetes, it is important to be proactive about your cholesterol, especially if you dont have stable glucose levels. People living with diabetes are more likely to be at risk for heart disease and stroke, especially at a young age, so its important to be as proactive as possible to keep your heart healthy.
Compared to people without diabetes, people with diabetes are more likely to experience lower levels of HDL and higher levels of LDL cholesterol. This means that there is not enough good cholesterol which normally helps to reduce your bad cholesterol ;to effectively do its job. Thats why its especially important for people with diabetes to monitor HDL and LDL levels and adopt healthy habits including diet and exercise to avoid health complications that could arise. The dangerous combination of low HDL and high LDL can lead to a greater risk of coronary heart disease over time. Youll find tips for managing cholesterol levels below, and you can learn more about heart disease and how to keep your heart healthy here. Exercise can actually help you increase your HDL cholesterol levels click to read the Cleveland Clinics Cholesterol Guide: Exercise Tips.
How The Body Produces Cholesterol Final Words
Cholesterol as a whole is no big bad villain, but a vital element that your body needs to keep itself functioning smoothly. While cholesterol does come from the foods you eat , the larger percentage is in fact produced by your own body.
That said, there is an inverse relationship between the two. When you consume less cholesterol, your body produces more, and vice versa. In order to maintain a healthy body, you must make sure that you have balanced cholesterol levels in your body.
As mentioned already, both high and low levels of cholesterol put you at a risk of contracting deadly diseases, especially those related to your circulatory system.
There are many ways to control the amount of cholesterol that is produced in your body. By altering your diet, maintaining a proper weight, exercising regularly, and avoiding bad habits such as excessive drinking and smoking, you can easily prevent the build-up of LDLs in your body that cause heart diseases and other circulatory problems.
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