Understand Your Condition

High Cholesterol


Overview

You probably know that fried chicken, a doughnut or a loaded double cheeseburger are not the best foods to put in your body. Why? Because foods like these are packed with unhealthy fats and lack many of the important nutrients for heart health. 

While our bodies need a certain amount of cholesterol to work properly, too much of the “bad” type can be dangerous. Over time, cholesterol and fat can collect in the inner walls of the arteries — including the ones that supply blood to the heart. This buildup can cause atherosclerosis, a narrowing of the arteries and a major cause of cardiovascular disease. People with high levels of low-density lipoprotein (LDL), also called the “bad” cholesterol, are at greater risk for cardiac events.

The good news is that high cholesterol is often preventable and treatable. Studies show that keeping LDL low can not only prevent someone from developing clogged or narrowed arteries in the first place (primary prevention), but doing so also helps reduce the likelihood of a heart attackstroke or related death among people who already have heart disease (secondary prevention). The opposite is true, too: Those with high levels of high-density lipoprotein (HDL) — the “good” cholesterol — tend to have cleaner arteries and lower risk of heart attack and stroke. That’s because HDL acts like a scavenger, helping to find harmful cholesterol and remove it from your arteries.

The challenge is that there are often no signs or red flags of having too much bad cholesterol until it starts to affect your arteries. For this reason, it's important to know your cholesterol numbers and your related risk for developing heart disease, heart attack or stroke.

Increasingly, research shows that keeping LDL cholesterol levels low is an essential part of staying heart healthy. Adopting a healthy diet, getting regular exercise, keeping weight well managed and, in some cases, taking a medication, can go a long way to help. 

What is Cholesterol? 

Cholesterol is a waxy, fat-like substance that travels through the blood in carrier vehicles called lipoproteins. Cholesterol is in some foods we eat and is also made by the liver. It serves a variety of functions. For example, it helps create the outer coating of our cells and aids the body in making vitamin D and certain hormones. 

Excess amounts of dietary fats get absorbed by the body and raise bad cholesterol in the blood.

Saturated and trans fats raise LDL cholesterol levels in the blood, thereby increasing the risk of heart disease. Foods that are high in animal fat (full-fat milk, cheese, meat) and/or prepared with butter, shortening or partially hydrogenated oils and sweets (cookies and cakes) are often the main culprits.

How do I know which foods have saturated or trans fats?


  • Read food labels.
  • Pay attention to what it looks like when it’s left out. Saturated fats, such as butter or shortening are usually solid at room temperature. On the other hand, olive oil remains liquid and is considered a healthier type of dietary fat (monounsaturated).
  • Steer clear of hydrogenated or partially-hydrogenated oil.
  • Remember, some foods that seem healthy may have hidden sources of extra calories and fat. Some salad dressings (and other sauces) can be laden with so much saturated fat that they can defeat what you are trying to do by eating the salad.

What Does It Feel Like?

Many people don’t know that they have high levels of harmful cholesterol. That’s because there are usually no signs or symptoms associated with an early buildup of fatty plaques in the arteries. Plaque is made up of cholesterol, fat and other substances. It’s not until there may be a significant blockage of the artery that someone might notice something is wrong. For example, they may have chest pain, pain in the arms or jaw, nausea, sweating, or shortness of breath — these usually occur when the blood supply to the heart is being slowed or blocked. Unfortunately, these blockages can rupture and cause major problems, even when they are much smaller and without causing any early symptoms. That is why, for some people, the first sign of elevated cholesterol may be a heart attack or stroke.

Cholesterol can affect the body in a number of ways

Elevated levels of LDL cholesterol can:

  • Cause irritation or swelling of the artery walls
  • Promote the formation of blood clots
  • Reduce or block the flow of blood through the arteries

So — even if you’re feeling good — it’s a good idea to get your cholesterol checked. Your doctor will consider your cholesterol numbers along with any other factors that make heart disease or stroke more likely to occur, such as your age, if you have diabetes or high blood pressure, of if you smoke. 

What Puts You at Risk?

High LDL and total cholesterol are generally related to either genetics or poor lifestyle habits which include:

  • Eating unhealthy fats and simple carbohydrates
  • Not exercising regularly
  • Being overweight or obese

In addition, you have a greater chance of heart disease or a stroke if you have:


Keep Tabs on Your Cholesterol

It's important to track your cholesterol and risk for related heart disease, heart attack or stroke. A simple blood test — called a lipid panel — is used to check the amount of cholesterol in your blood. Cholesterol is measured in milligrams (mg) per deciliter (dL) of blood — mg/dL in the United States. The test provides four measures: 

  • Total or overall cholesterol
  • LDL, or “bad,” cholesterol
  • HDL, or “good,” cholesterol
  • Triglycerides

It’s important to track your cholesterol over time, especially because there are often no signs and symptoms of early buildup of fat and cholesterol in the artery walls. Talk with your health care provider about how often your cholesterol should be checked and what numbers would be ideal for you.

light bulbA heart-healthy lifestyle is recommended regardless of whether you have high cholesterol or not.

Treatment

Your treatment plan to lower your cholesterol numbers and help optimize your heart health will be based on your overall risk for cardiovascular disease. For example, a standard risk assessment would note whether you already have atherosclerosis or have a high chance of developing it. Recommended treatments will also depend on:

  • Your cholesterol levels
  • Other conditions you may have
  • Previous treatments tried (if applicable)
  • Personal choice 

Trying to lower elevated levels of LDL often can be helped by making healthier lifestyle choices. In fact, the choices we make every day can affect our cholesterol. 

Here are four things that can make a difference:

  1. Revamp the way you eat by following a heart-healthy plan such as the Mediterranean or DASH diets (these are less “diets” and more ways to adopt more healthy patterns of eating)
  2. Exercise regularly 
  3. Stay at a healthy weight and lose any extra pounds
  4. Don’t smoke, and stay away from secondhand smoke 

Many people with elevated LDL cholesterol also need to take medication. 

Lifestyle Changes 

Adopting a heart-healthy diet and getting regular exercise are the most important steps you can take to prevent or control cholesterol problems and heart disease. Here are some general tips: 

  • Get physical. Aim to get a minimum of 30 minutes of (moderate-intensity) activity at least five times a week. Activities might include a brisk walk, jogging, riding a bike, swimming—even gardening or heavy housework. If you don’t have a 30-minute block of time free, even 10-minute bursts of activity three times throughout the day is helpful. Consider wearing a device that keeps track of the number of steps you take each day so that you know your starting point.
  • Take time to read and understand food labels, and pay special attention to the amount of saturated fats, trans fats (hydrogenated or partially hydrogenated oils) and sugar content.
  • Try to avoid full-fat dairy products, processed foods, and foods high in salt (sodium) and preservatives.
  • Swap out butter or margarine for healthier fats such as olive oil, avocados and a handful of almonds (remember, fat that becomes solid on the counter should probably be avoided). Nuts, fish, certain oils (olive, canola and peanut oils) and other foods rich in omega-3 fatty acids are good choices.
  • Consider keeping a food diary so you can see what you are eating and what dietary habits you might need to change.
  • Ask about seeing a dietitian or nutritionist who can help you meal plan and provide dietary strategies for lowering LDL or triglycerides, and improving your sugar levels and boosting your energy.
  • As with any goal, start small. Make sure you are setting yourself up for success.
  • Limit alcohol. Too much alcohol can raise triglyceride levels and blood pressure.

Eat this, not that

 Limit or Avoid

Infographic: Cholesterol

Featured Video

LDL – the bad cholesterol. LDL is the cholesterol that gums up your arteries and causes the buildup of blockages. It’s also the cholesterol that is toxic to the lining of your arteries, increasing the risk of a heart attack or stroke.

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