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Medium-chain triglycerides are a class of fatty acids. Their chemical composition is of a shorter length than the long-chain fatty acids present in most other fats and oils, which accounts for their name. They are also different from other fats in that they have a slightly lower calorie content1 and they are more rapidly absorbed and burned as energy, resembling carbohydrate more than fat.2
Medium-chain triglycerides are found in coconut oil, palm kernel oil, and butter. Medium-chain triglycerides are also available as a supplement.
Medium-chain triglycerides have been used in connection with the following conditions (refer to the individual health concern for complete information):
| Science Ratings | Health Concerns |
|---|---|
 | |
 Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit. | |
Most people consume adequate amounts of fat in their diets and many people consume excessive amounts, so extra fat intake as medium-chain triglycerides is unnecessary.
The best amount of medium-chain triglycerides to take is currently unknown. Athletes are not likely to benefit from less than 50 grams during exercise. Larger amounts may possibly help some, but may also impair performance if not combined with carbohydrate.
Consuming medium-chain triglycerides on an empty stomach can lead to gastrointestinal upset. Anyone with cirrhosis or other liver problems should check with a doctor before using medium-chain triglycerides. Two reports suggest that medium-chain triglycerides may raise serum cholesterol and/or triglycerides.3 4 Medium-chain triglycerides are actually the preferred fatty acid source for cirrhotic patients, but only when used intermittently.5
At the time of writing, there were no well-known drug interactions with medium-chain triglycerides.
1. Bach AC, Ingenbleek Y, Frey A. The usefulness of dietary medium-chain triglycerides in body weight control: fact or fancy? J Lipid Res 1996;37:708–26.
2. Bach AC, Babayan VK. Medium-chain triglycerides—an update. Am J Clin Nutr 1982;36:950–62.
3. Cater NB, Heller HJ, Denke MA. Comparison of the effects of medium-chain triacylglycerols, palm oil, and high oleic acid sunflower oil on plasma triacylglycerol fatty acids and lipid and lipoprotein concentrations in humans. Am J Clin Nutr 1997;65:41–5.
4. Hill JO, Peters JC, Swift LL, et al. Changes in blood lipids during six days of overfeeding with medium or long chain triglycerides. J Lipid Res 1990;31:407–16.
5. Fan ST. Review: nutritional support for patients with cirrhosis. J Gastroenterol Hepatol 1997;12:282–6.
Copyright © 2007 Healthnotes, Inc. All rights reserved. www.healthnotes.com
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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires September 2008.
