February 2008
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Improve your cholesterol levels
Worrying about cholesterol has become a fact of modern life. And the latest scientific evidence suggests that cholesterol levels once considered ideal may not be low enough to keep heart disease at bay. Indeed, new criteria issued by the National Heart, Lung, and Blood Institute (NHLBI) nearly triple the number of people who should be taking cholesterol-cutting drugs, to almost one-fifth of all adults.


The numbers: The lower the better?

Cholesterol travels through the bloodstream as part of larger particles known as lipoproteins. Treatment for elevated cholesterol levels focuses on LDL (“bad” cholesterol), which tends to dump its cholesterol load into the artery walls. Whether and how much you need to lower your LDL level depends not just on your level, but on your overall coronary risk.

In other words: Even if your LDL level isn’t “bad” (160 and above), other coronary risk factors (ranging from cigarette smoking to diagnosed heart disease) may put you in a category of people who should talk to their doctors about an LDL-lowering treatment plan.

Do You Need To Reduce LDL?
CORONARY-RISK GROUP CONSIDER REDUCING LDL… DEFINITELY REDUCE LDL…
HIGH

  1. 10-year heart-attack risk about 20%,

    OR

  2. One or more extreme-risk factors
If it’s 70 mg/dl or higher, especially if

  • You have multiple extreme risk factors

  • You have multiple standard-risk factors and a CRP level about 3 mg/l
If it’s 100 mg/dl or higher

MODERATELY HIGH

  1. 10-year heart-attack risk of 10% to 20%,

    AND

  2. Two or more standard-risk factors
If it’s 100 mg/dl or higher, especially if you have a high CRP level If it’s 130 mg/dl or higher
MODERATE

  1. 10-year heart-attack risk less than 10%,

    AND

  2. Two or more standard-risk factors
If it’s 130 mg/dl or higher and you have a high CRP level If it’s 160 mg/dl or higher
LOW

  1. No standard risk factors, or one standard-risk factor*
If it’s 160 mg/dl or higher and you have a high CRP level, though the benefit of measuring CRP here is less clear. If it’s 190 mg/dl or higher
* People in this group usually have less than a 10 percent 10-year risk. Those with higher risk should ask their doctors whether they need more aggressive treatment than shown here.


Find your LDL treatment plan

  • Use the National Heart, Lung, and Blood Institute’s heart-attack risk assessment tool to determine your risk for a heart attack within the next 10 years.

  • Determine whether you have any extreme or standard coronary risk factors.

  •  Take a look at the table below. If you know your levels of C-reactive protein (CRP), take them into consideration, too. CRP is a marker of arterial inflammation and possibly elevated homocysteine, an artery-damaging amino-acid; your doctor can help you determine your levels.

  • If the table recommends reducing your LDL and your coronary risk is high or moderately high, you’ll generally need both drug therapy and lifestyle changes. If you’re at low or moderate risk, you’ll need medication only if about three months of lifestyle steps fail to achieve the desired LDL reduction.


With drug therapies, treat aggressively—but safely

To reach LDL levels well below 100 mg/dl, high-LDL patients will most likely have to take potent cholesterol-lowering medications known as statins.

While cholesterol drugs are generally safe, their risks rise at higher doses. Moreover, such doses may be unnecessary and unwise. Studies show that the highest doses often provide minimal additional benefit while substantially increasing the chance of adverse effects.

Instead, it often makes sense to add a second medication. A second drug may be appropriate when you have not only a high level of LDL cholesterol but also either a low level of HDL cholesterol (“good” cholesterol, which drags cholesterol out of the arteries) or a high level of triglycerides (fats in the blood that elevate coronary risk). Talk to your doctor.

Coronary Risk Factors
STANDARD RISK FACTORS EXTREME RISK FACTORS
  • Cigarette smoking
  • Coronary disease before age 55 in a father or brother
  • Coronary disease before age 65 in a mother or sister
  • Systolic blood pressure of 140 mm Hg or more, diastolic pressure of 90 or more, or use of antihypertensive medication
  • HDL level less than 40 mg/dl
  • (If your HDL is 60 or more, subtract one standard risk factor)
  • Coronary heart disease
  • Diabetes
  • Peripheral-artery disease
  • Carotid-artery disease
  • Aortic aneurism


Make vital lifestyle changes

Despite the new emphasis on medication, some people with a high LDL can still get by with lifestyle steps alone. And all people who take the drugs must make these changes too, since they’re unlikely to reach their goals otherwise and because the steps protect the heart in many other ways as well.

  • Reduce intake of saturated fats, found mainly in animal foods, to less than 7 percent of total calories. And try to eliminate your intake of trans fats or partially-hydrogenated oils.

  • Consume less cholesterol—less than 200 milligrams per day. That’s the amount in about one egg yolk, 10 ounces of lean sirloin, or 8 ounces of skinless chicken breast.

  • Consume lots of fiber, mainly from whole grains, fruits, vegetables, and beans. Oat bran, psyllium, and barley may be particularly effective, cutting LDL by 5 to 10 percent. Women should aim for 25 grams a day up to age 50, and 21 grams after that age; men in those age groups should aim for 38 and 30 grams respectively.

  • Lose excess weight by cutting calories and exercising. (For advice, click Lose extra pounds.)

  • Work out regularly, even if you don’t have to lose weight. Exercise can raise your HDL level and may help lower LDL as well. (For advice, click Stay active and fit.)

  • Consider consuming plant stanols or sterols from products such as Benecol and Take Control margarine, Your Ultimate Milk, and Minute Maid Premium Heart Wise orange juice. Having two daily servings may reduce LDL by 5 to 17 percent.

  • Eat soy protein. Getting 25 grams a day of this protein—the amount in two or three services of foods such as tofu, soy nuts, and soy milk—may lower LDL by up to 10 percent.


CR RECOMMENDS

Learn more about cholesterol with our Condition Overview.

Subscribers, see our Treatment Ratings for high cholesterol.