Cholesterol
What is cholesterol?
Cholesterol is a soft, waxy substance that is a
natural part of our bodies. It helps build cell membranes and
other important tissues.
Our bodies make cholesterol. We also get it from
eating anima products such as meats, poultry, fish, eggs, butter,
cheese and whole milk.
Heart disease is the number one killer of women
and men in the United States. Each year more than a million Americans
have heart attacks and about half a million people die from heart
disease. The good news is that you can control a major risk factor
in cardiovascular disease-your cholesterol level.
Is cholesterol bad?
No. We need a certain amount of cholesterol for
a healthy body. But too much of it can lead to serious problems.
Cholesterol and other fats can't dissolve in the
blood. They have to be taken to and from the cells by carriers
called lipoproteins.
What causes atherosclerosis?
Atherosclerosis is also known as "hardening
of the arteries." We don't know exactly what causes it, but
experts think it starts when the innermost layer of the artery
wall is damaged. This may result from:
- High levels of cholesterol and triglycerides
- High blood pressure
- Cigarette smoke
What are the risk factors?
A high level of cholesterol in the blood is one of the major risk
factors for developing heart disease and suffering a heart attack.
However, it's one of the risk factors you can do something about.
We can divide the risk factors into those we have no control over
and those we can do something about.
The risk factors we can't control are:
- Family history - If your father or brother
had heart disease before age 55, or your mother or sister before
age 65, you're more likely to get it yourself.
- Age and gender - As we get older, the risk
increases. Men over age 45 and women over age 55 are at greater
risk.
The risk factors we CAN control are:
- High cholesterol - As cholesterol levels rise,
the risk of heart disease does too. To reduce your risk, keep
your levels within the ranges outlined below.
- Diabetes - According to the American Heart
Association, adults with diabetes are two to four times more likely
to have heart disease or suffer a stroke than adults without diabetes.
However, good control of diabetes can lower the risk.
- Cigarette smoking - Smoking doubles the risk
of heart disease. Secondhand smoke, over a long period of time,
may also increase the risk.
- High blood pressure - High blood pressure makes
the heart work harder, causing it to weaken and increasing the
likelihood of stroke, heart attack, kidney failure and congestive
heart failure.
- Lack of activity - Moderate to vigorous physical
activity on a regular basis can help prevent cardiovascular disease.
Even moderate activity done regularly over the long term can help.
- Excess weight - Being obese or overweight puts
an extra load on our hearts. It also affects blood pressure and
cholesterol levels and can make us more susceptible to diabetes.
Even small amounts of weight loss can be important in decreasing
the risk of heart disease.
What is "good" cholesterol?
How much should I have?
HDL stands for high-density lipoprotein. It's called "good"
cholesterol because it seems to protect against heart at tacks.
HDL may carry some of the cholesterol away from the arteries. Having
an HDL level of 60mg/dL or greater reduces your risk of heart disease.
However, if your HDL level is less than 40 mg/dL, your risk of heard
disease increases.

What is "bad" cholesterol? How much should I
have?
LDL, or low-density lipoprotein, is considered "bad"
because high levels are linked with increased risk of heard disease.
When LDL cholesterol builds up the artery walls, it can restrict
blood flow or even block it altogether. The result can be a heart
attack or stroke.
If you have existing heart disease or diabetes, your LDL level
should be less than 100 mg/dL. If you have two or more risk factors
listed above, your LDL should be less than 130 mg/dL. If you have
none or just one of the risk factors, your LDL should be less than
160 mg/dL.
So then what are triglycerides?
Triglycerides are a kind of fat. High levels of triglycerides may
be linked with a greater risk for heart disease. People who are
overweight and have diabetes are likely to have high levels of triglycerides,
too.

How often should I get my cholesterol levels checked?
All adults should have their cholesterol tested at least once every
five years. This means measuring more than just your total cholesterol
- be sure you have your LDL, HDL and triglyceride levels checked
as well. If you have a cholesterol problem, your doctor may monitor
you at more frequent intervals.
Do women have to pay attention to cholesterol levels?
Absolutely! It's true that before menopause women are at a lower
risk of heart disease compared to men of the same age. But after
menopause, when the hormone estrogen decreases, women's risk rises.
In fact, coronary heart disease is the number one killer of women.
Women are 12 times more likely to die of cardiovascular disease
than of breast cancer.
I've changed my lifestyle, but my cholesterol is still
too high. What are my options?
Your doctor might prescribe cholesterol reducing medicine, especially
if you have other heart-disease risk factors. Some medicines can
lower cholesterol and reduce existing artery-clogging plaque -
the buildup that makes it harder for your blood to flow.
How much fat and cholesterol should you eat each day?
The American Heart Association suggests that you limit cholesterol
intake to less than 300 mg per day. They specifically recommend:
| |
Total
Fat |
Saturated
Fat |
Cholesterol |
| People without
coronary heart disease. |
30% or less of total calories |
7-10% of total calories or less |
Less than 300 mg per day |
| People with
coronary heart disease. |
30% or less of total calories |
Less than 7% of total calories |
Less than 300 mg per day |
4 Tips
for Cutting Fat and Cholesterol |
- Trim off the fat you can see before cooking meat and
poultry, and drain off all fat after browning.
- Chill soups and stews after cooking so you can remove
the hardened fat from the top.
- Use cooking methods that require little or no fat -
boil, broil, bake, roast, poach, steam, sauté,
stir-fry or microwave.
- Eat five or more servings of fruits or vegetables each
day.
Click
here to view Nutrient Comparisons of Meat, Poultry and
Seafood
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