Conjugated linoleic acid

An overview of conjugated linoleic acid, its sources, and potential health benefits

Chemical structure of rumenic acid, a type of conjugated linoleic acid

Conjugated linoleic acid (CLA) refers to a group of isomers of linoleic acid, which are primarily found in the meat and dairy products derived from ruminants. These isomers are characterized by the presence of conjugated double bonds, which are double bonds separated by a single bond. CLA has been the subject of numerous studies due to its potential health benefits, including anti-carcinogenic, anti-diabetic, and anti-obesity effects.

Sources of Conjugated Linoleic Acid

CLA is naturally found in the meat and milk of ruminants such as cows, sheep, and goats. The concentration of CLA in these products can vary based on the animal's diet, breed, and other factors. Grass-fed animals tend to have higher levels of CLA in their meat and milk compared to grain-fed animals.

Health Benefits

Research has suggested several potential health benefits of CLA, although results have been mixed and more studies are needed to confirm these effects in humans.

Anti-carcinogenic Effects

Some studies have indicated that CLA may have anti-carcinogenic properties. It has been shown to inhibit the growth of certain types of cancer cells in laboratory settings, including breast, colorectal, and prostate cancer cells. However, the evidence from human studies is not yet conclusive.

Anti-diabetic Effects

CLA has been studied for its potential role in improving insulin sensitivity and reducing the risk of type 2 diabetes. Some animal studies have shown promising results, but human studies have produced mixed outcomes.

Anti-obesity Effects

CLA is often marketed as a weight loss supplement. Some studies have suggested that it may help reduce body fat and increase lean body mass. However, the overall effect size is small, and the long-term safety and efficacy of CLA supplementation for weight loss remain uncertain.

Mechanism of Action

The exact mechanisms by which CLA exerts its effects are not fully understood. It is believed that CLA may influence body composition and metabolism through several pathways, including modulation of lipid metabolism, alteration of energy expenditure, and regulation of adipocyte differentiation.

Safety and Side Effects

While CLA is generally considered safe when consumed as part of a normal diet, high doses of CLA supplements may cause side effects such as gastrointestinal discomfort, insulin resistance, and increased oxidative stress. It is important for individuals to consult with healthcare professionals before starting any new supplement regimen.

Also see

• Linoleic acid
• Omega-3 fatty acids
• Ruminant
• Dietary supplement

Nutrition information of Conjugated linoleic acid

• USDA on Conjugated linoleic acid