Conjugated linoleic acid - An ingredient with proven 'physique changing' research

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Decades of research indicate that CLA (conjugated linoleic acid) may help change body composition by reducing body fat and preserving lean body mass - helping you lose inches and giving you a leaner, healthier appearance.

Derived from natural safflower oil, CLA inhibits lipoprotein lipase, an enzyme that is responsible for the removal of fat from the blood. Usually, once the fat is removed and broken down, it is stored in the body. By suppressing this enzyme, CLA helps reduce the amount of fat that is broken down and, therefore, the amount of fat that is deposited and stored.

Combined with a balanced diet and exercise, CLA can help you lose body fat, and keep it off.

Research continues to grow showing the incredible fat-burning and muscle toning effects of CLA. In a recent study at Purdue University, subjects who added six grams of CLA to their diets for eight weeks had lower body mass as well as lower blood sugar levels.

Researchers also found that higher levels of this fatty acid in the bloodstream meant lower levels of leptin, a hormone thought to regulate fat levels. Scientists think that high leptin levels may play a role in obesity, one of the biggest risk factors for adult-onset diabetes. The research appears in the January 2003 issue of the Journal of Nutrition.

“In previous work, we found that CLA delayed the onset of diabetes in rats”, said Martha Belury, the senior author of the study and an associate professor of human nutrition at Ohio State University. “In this study, we found that it also helped improve the management of adult-onset diabetes in humans. The amount of CLA, how long it’s taken and the type taken, all impact the fatty acid, ability to affect obesity in humans, and therefore help manage diabetes,” she adds.

CLA refers to a family of naturally occurring polyunsaturated fats found primarily in beef, lamb, and dairy products. Unlike stimulant-based fat burners, CLA is natural and safe. What’s more, many previous trials show that CLA has potent muscle-building effects.

For example, eighty overweight people took part in a six-month U.S. study, conducted at the University of Wisconsin in Madison. The participants dieted and exercised and, as expected, most initially lost weight, according to Michael Pariza, Ph.D., director of the university’s Food Research Institute, and one of the lead researchers for the study. But, as often happens, many regained some of the weight lost when they stopped their diets, he said.

The people who did not take CLA put pounds back on at a ratio of 75 percent fat to 25 percent lean, which is typical for most people, points out Pariza. For the people taking CLA, less fat was regained and more muscle mass was retained. “The ratio was more like 50:50 - 50 percent fat and 50 percent muscle,” according to Pariza. “That is very significant. It leads to the idea that CLA could be useful in weight management,” he said. “Our results also showed that CLA made it easier for people to stay on their diets.”

Unfortunately, there is a lot of poor quality CLA out there. There’s very little quality-control in the supplement industry, which is why some people see no results after using CLA. If you’re looking for a high quality CLA, TONALIN® CLA is considered the highest quality form of CLA available, with no natural or artificial stimulants, made by the raw ingredient company Cognis. A few companies are licensed to sell it, one of those is a company called Maximuscle, which sell 1000mg softgels in their product called CLA-1000. Another recommended choice is CLA-750 from NewFoods .

References:

1. Conjugated Linoleic Acid reduces body fat in healthy exercising humans Conjugated Linoleic Acid reduces body fat in healthy exercising humans

Description: Volunteers received 1.8g CLA or placebo (dummy pill, with no active ingredient) for 3 months, and were asked not to make any changes in their diet and lifestyle during the study, in addition to having their physical exercise standardised to 90 minutes, three times a week.

Results: The CLA group had a significant reduction in body fat percent from 21.3% to 17.0%, and a reduction in body weight (from 69.6 to 68.9 kg).
Effect of supplementation with Conjugated Linoleic Acid on human serum lipids and body fat

2. Description: Healthy, young, non-obese (overweight) volunteers received 0.7 g CLA/day for 4 weeks, followed by 1.4 g CLA/day the next 4 weeks, or a soybean oil placebo.

Results: Sum of skin folds, percentage body fat and fat mass decreased significantly in the CLA group.
Conjugated Linoleic Acid supplementation for 1 year reduces body fat mass in healthy overweight humans Conjugated Linoleic Acid supplementation for 1 year reduces body fat mass in healthy overweight humans

3. Description: Overweight volunteers received 3.4g CLA each day over 1 year or received an olive oil placebo (control group) per day.

Results: Mean body fat mass in the CLA groups was 6.9% - 8.7% lower than that in the placebo-control group. Long-term supplementation with CLA reduced body fat mass in healthy overweight adults significantly.
Supplementation with Conjugated Linoleic Acid for 24 months is well tolerated by and reduces body fat mass in healthy, overweight humans Supplementation with Conjugated Linoleic Acid for 24 months is well tolerated by and reduces body fat mass in healthy, overweight humans

4. Description: Follow-up of 12 month placebo-controlled study. Moderately overweight volunteers received 3.4g CLA each day.

Results: Subjects who lost body fat mass in year one of the study could keep their body fat off, and subjects who previously had received placebo and were switched to CLA, now lost body fat mass significantly. Leptin levels decreased over the whole period of supplementation by more than 20%. Long-term supplementation with CLA is safe over 24 months at least.

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