Conjugated linoleic acid: a novel therapeutic nutrient?
H M Roche1, E Noone, A N Gibney
1Unit of Nutrition Dept of Clinical Medicine Trinity Health Sciences Centre, St James's Hospital Dublin 8, Ireland.
Nutrition Research Reviews
|December 18, 2008
Summary
Conjugated linoleic acid (CLA) shows potential therapeutic benefits for obesity, cardiovascular disease, and cancer. While animal studies are promising, human trials require further investigation to confirm CLA
Area of Science:
- Nutritional Science
- Biochemistry
- Molecular Biology
Background:
- Conjugated linoleic acid (CLA) comprises fatty acid isomers with diverse biological activities.
- Emerging research indicates CLA influences body composition, lipid metabolism, inflammation, and carcinogenesis.
- CLA presents potential as a therapeutic nutrient for obesity, atherosclerosis, inflammatory diseases, and cancer.
Purpose of the Study:
- To review the current understanding of Conjugated linoleic acid (CLA) health effects.
- To evaluate the evidence for CLA's therapeutic potential in common diseases.
- To identify research gaps and future directions for CLA studies in human subjects.
Main Methods:
- Literature review of in vitro, animal, and human studies on CLA.
- Analysis of CLA's effects on body composition, lipoprotein metabolism, inflammation, and carcinogenesis.
- Examination of the molecular mechanisms underlying CLA's biological activities.
Main Results:
- Animal studies demonstrate CLA's potent anti-adipogenic effects, reducing fat mass and increasing lean mass.
- CLA improves plasma cholesterol and triacylglycerol metabolism and inhibits atherosclerosis in animal models.
- Human studies show mixed results for CLA's effect on body composition, but some evidence suggests improved lipid metabolism and immune response.
Conclusions:
- CLA exhibits therapeutic potential for various diseases, supported by extensive animal research.
- Further human studies are needed to elucidate the molecular basis and confirm the health benefits of CLA.
- Defining CLA's precise role and mechanisms in human health remains a key research challenge.
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