Weight loss dietary supplements are an enticing consideration for dieters, particularly for those who may have tried conventional diet programs with little or no success, because they offer a seemingly quick and simple remedy for weight loss. However, as tempting as diet pills are, a major consideration for consumers is whether or not weight loss dietary supplements are safe and effective, and if they are safe and effective, which supplement best suits the needs of the individual for their weight loss goals?
Extensive research has been conducted on the active ingredients of many weight loss dietary supplements, and the results of this research indicated that a large number of diet pills are not only ineffective, but can produce dangerous side effects. Research results also revealed a small number of diet pills whose efficacy and lack of side effects indicate increased opportunity for weight loss and weight management success. Following is detailed information based on these research results.
Conjugated Linoleic Acid (CLA):
Conjugated linoleic acid, or CLA, is a naturally occurring unsaturated trans fatty acid found in the meat and dairy products of cattle, sheep, goats, llamas, deer, and buffalo, as well as in plants like safflowers and sunflowers. Research has deduced that CLA consists of two molecules: one appears to be responsible for improving the growth of muscle, the other for preventing fat storage in the layer of cells directly beneath the skin.
Many clinical trials involving mice and rats have produced promising results regarding CLA’s antioxidant and anti-tumor properties, however results have not been duplicated in human clinical trials. Studies on the effects of CLA on humans have resulted in body fat reduction, specifically in the abdominal region, however concerns exist that the use of CLA by humans may increase the risk of diabetes by creating a resistance to insulin within the body.
A study by the U.S. Department of Agriculture conducted on the effects of CLA on mice in 2006 concluded its usage causes the redistribution of essential fatty acids in the tissue of several organs including the heart, brain, and spleen, raising concerns that CLA may pose serious cardiac health risks, and could increase the risk for inflammatory diseases.
In conclusion, very few human clinical studies have been performed to substantiate the claims of using CLA supplements to safely or effectively burn or reduce fat.