Conjugated Linoleic Acid (CLA) is a mixture of several biochemical forms of linoleic acid (LA). LA belongs to the family of omega-6 unsaturated fatty acids. It is one of two essential fatty acids that humans need for good health and a wide range of body functions. CLA is available in many foods, but is mainly found in beef and dairy products.
As a dietary supplement, CLA slimming diet pills from Trec Nutrition are purported to melt body fat, especially at the hips, waist and thighs, and to turn it into energy during exercising. They are also supposed to improve skin look and texture.
Research has indeed shown that mice fed with CLA exhibited reduced adiposity (body fat) and increased lean muscle mass. However, similar experiments in humans have been inconclusive so far.
A meta-analysis of 18 studies on the fat loss effect of CLA conducted in 2007 concluded that: “Given at a dose of 3.2 g/d, CLA produces a modest loss in body fat in humans”.
A 2010 study determined CLA’s effect on fat and Body Mass Index (BMI) in 62 overweight or obese children 6-10 years old. The study found that 7-month CLA supplementation resulted in a significant decrease in body fatness and HDL, the good cholesterol.
Other Possible Health Benefits of CLA
It has been suggested that CLA acts as an antioxidant: it can neutralize "free radicals" and boost your immune system. CLA is alleged to improve the transport of nutrients through mitochondrial membranes, speeding up the regeneration of tissues after physical activity. In addition, CLA may improve skin condition, make the tissue more flexible, and help eliminate cellulite.
How do CLA Slimming Diet Pills Work?
Although extensive research has been conducted during the last 10 years on the CLA function, the mechanism by which CLA works to affect body weight and composition is still elusive.
A working hypothesis is that CLA is thermogenic (increases energy expenditure in the form of heat), and it boosts fat loss by turning fat deposits into energy, especially during exercise. This released energy improves endurance, contrary to other diets, which often make you feel tired and energy depleted because of low calorie intake.
What Others Are Saying – Do Trec Nutrition CLA Slimming Diet Pills Really Work?
According to the manufacturer, several weeks of regular use of CLA supplement will result in about 40% fat loss. I did not find any customer reviews to support this manufacturer’s claim. Also, the researched properties of linoleic acid do not include 40% fat burning or weight loss. The linoleic acid is good for a range of health issues, including diabetes, cystic fibrosis, cancer and dermatitis.
How Much Weight Will I Lose?
No reviews are available to provide data about the amount, if any, of the weight loss.
None known, the product is made of linoleic acid, which is natural, even crucial, part of human nutrition. However, a recent scientific review on the association between CLA and obesity notes that some studies “raise concern about the possibility of deleterious effects of trans-10,cis-12 CLA on lipid profile, glucose metabolism and insulin sensitivity.”
The 2010 study that measured the effect of CLA supplementation on children’s adiposity (mentioned earlier) notes: “Long-term investigation of the safety and efficacy of CLA supplementation in children is recommended.”
Pros and Cons
- Natural part of human nutrition
- Research has shown that it reduces body fat and increases muscle mass in mice. Some studies have shown the CLA has the same effect in humans.
Human studies are contradictory
Problems and Complaints
No problems reported.
Clinical results are contradictory when it comes to the fat loss effects of CLA. Linoleic acid is part of many oils used in regular nutrition and has no reported side effects. There is evidence that it fights cystic fibrosis, dermatitis and even cancer. But, in my research I have not yet found compelling real-life evidence testifying that CLA actually works as a diet pill.
To me, the manufacturer did not do a very good job in justifying their claim that several weeks of CLA use will result in the loss of 40 percent of body fat. If they did, there would be customer reviews to support their claim. .