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Mayo Clinic Q And A: Managing high cholesterol with lifestyle changes

From Mayo Clinic News Network, Mayo Clinic News Network on

Published in Health & Fitness

DEAR MAYO CLINIC: I recently had an annual well check with my primary care doctor and was told I have high cholesterol. I know it runs in my family, but I am 25 and thought I was eating well enough and exercising. I do not want to start taking medication. What does it mean to have high cholesterol? What can I do to improve my cholesterol?

ANSWER: Cholesterol is a waxy substance found in fat in the blood. Your body makes cholesterol in the liver, from breaking down foods that you eat. But when you have too much cholesterol, you may develop fatty deposits, also known as plaque, in your blood vessels. This can make it difficult for blood to flow through your arteries. Over time, the plaque can build up and break off, potentially causing a heart attack or stroke.

Diagnosing high cholesterol can be challenging, as often there are no signs or symptoms. Having a lipid screening blood test should be part of a physical for anyone over 20 to assess the risk of coronary artery disease. The test may be repeated every three to five years or more often, depending on family history, or if you have existing heart disease, diabetes or other conditions that may increase your risk of coronary heart disease.

When your health care provider evaluates lipids, he or she is looking at total cholesterol; HDL, high-density lipoprotein or "good" cholesterol; LDL, low-density lipoprotein or "bad" cholesterol; and triglycerides. Each is part of the total cholesterol number.

Risk factors for high cholesterol include poor diet, physical inactivity, smoking, obesity, diabetes and age. While you may eat healthy and exercise, genetics also plays a role. If you are African American, Latino or Asian American, research indicates you also are at greater risk for heart disease resulting from high cholesterol.

Patients, especially younger patients like yourself, can use a risk calculator to help determine the probability of a heart attack in the next 10-30 years. Although there are many calculators and numerous factors that determine a person's risk, I believe having the conversation with your health care provider is important as you decide how to manage your condition.

 

Based on your risk and family history, your provider may recommend a coronary calcium score test. This is a CT scan of the heart to determine how much calcified plaque is in the heart arteries. This test can help determine if lifestyle changes alone would be recommended or if starting a medication is needed to reduce your heart attack risk.

As far as managing your high cholesterol, the first treatment for someone your age is behavioral lifestyle changes. The primary focus is around physical activity - at least 30 minutes of activity daily - and modifying your diet.

What you eat affects your cholesterol levels. The biggest culprit these days is the consumption of transfats and saturated fats, which are referred to as "bad" fats.

Transfats often are found in prepackaged products or items that are made with shortening or margarine. Examples include doughnuts and cookies, nondairy whipped cream and creamer, microwavable popcorn, fast foods, and fried foods. My recommendation is to eliminate these foods from your diet.

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