What are triglycerides?
Triglycerides are a type of lipids (fat). Your body gets
triglycerides from fats in the food you eat and it can also
make triglycerides in the liver. When your body digests
food, fats in the food change to triglycerides. Your body
can also make more triglycerides in the liver from fat,
carbohydrates, and protein. Triglycerides are carried by
the blood to all parts of your body to be used as energy or
stored as fat.
What is a normal triglyceride level?
A blood test can measure the level of triglycerides in your
blood. The levels vary with age. They also depend on when
you last ate before the test. The measurement is most
accurate if you have not eaten in the last 12 hours or so.
Generally, you want your triglyceride level to be 150 mg/dL
or less. A level between 150 and 199 mg/dL is borderline
high. A level of 200 mg/dL is high. Triglycerides rarely
reach extremely high levels unless you have an inherited
tendency for high levels.
How are triglycerides associated with cholesterol?
Triglycerides combine with a protein in your blood to form
chemicals called high-density and low-density lipoproteins.
The lipoproteins contain cholesterol.
What causes high triglyceride levels?
High triglyceride levels may have several causes:
- Weight gain. Triglyceride levels usually increase as
your weight increases.
- Too many calories in your diet, especially from sugar and
alcohol. Alcohol increases your liver's production of
triglycerides and reduces the amount of fat cleared from
your blood.
- Age. Triglyceride levels steadily increase as you grow
older.
- Medicines. Certain drugs, such as birth control pills,
steroids, and diuretics (water pills) can cause
triglyceride levels to rise.
- Illness. Medical conditions associated with high
triglyceride levels are diabetes, hypothyroidism,
kidney disease, and liver disease.
- Heredity. Some forms of high triglycerides occur among
members of the same families.
What are the risks of high triglyceride levels?
If your cholesterol is normal, a high triglyceride level
does not appear to be a risk factor for heart disease. A
level above normal may be a risk factor for diabetes and
inflammation of the pancreas (pancreatitis).
How are triglycerides measured?
Your health care provider can measure your triglyceride
level with a simple blood test. You should not eat for 12
to 14 hours before the test. Your provider wants to know
only the amount of triglycerides being made by your liver,
not what is produced by digestion.
How are high levels treated and prevented?
Here are things you can do to lower or prevent a high triglyceride
level.
- Lose weight.
- Get regular exercise.
- Eat less sugar and sugar-containing foods.
- Eat small meals and snacks throughout the day instead of
2 or 3 large meals.
- Drink less alcohol. Alcohol can increase the liver's
production of triglycerides.
- Limit the fat in your diet to less than 30% of your daily
calories.
If these lifestyle changes do not lower your triglyceride
levels, your health care provider may prescribe a medicine
to decrease the liver's production of triglycerides and to
clear triglycerides from your blood. The medicine will also
help reduce cholesterol.
Fish oil also has been found to reduce triglycerides. Two
or three meals of fish such as salmon or mackerel every week
may help lower your triglyceride levels.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File CRD3649F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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