CLA was discovered 30 years ago by several researchers at the University of Wisconsin.  The team of researchers was looking for mutagens in beef, so they applied beef extract to the skin of mice.  After 4 months–and to their surprise–they discovered that the mice exposed to the beef extract had 20% fewer tumors then other mice.  After further examination, it was soon discovered that CLA not only helped in the prevention of tumors but that it also held some body weight properties as well.

What does the research say about CLA?

Since that discovery, it was like a gold rush, the way weight loss companies chased after CLA and now it can be found in numerous products.  Because it’s been around for years, the research done on CLA is ample.  Problem is, nothing is definitive. I’ve counted over 30 clinical studies that have been published citing unique research regarding the effect of CLA and weight. One study I read claimed CLA users lost an average of 6 pounds of fat compared to nothing for placebo users. Another study claimed CLA dieters showed zero results; no difference at all compared to those using a placebo.   While many of these studies are conflicting, it does appear that CLA is successful in altering the fat mass—scientists are just unsure how effective it is. It seems that CLA is most effective in targeting abdominal fat. In 2008, the FDA as allowed it to be put into certain food categories like fluid milk, yogurt, nutritional bars, fruit juices and soymilk.

How much is required?

For CLA to be effective, it’s best to use it in the recommended dosage.  Studies proved that CLA became most effective when taking a daily dosage of 3.4g.  So, for example, if you were taking 1000 mg capsules you would need to take 4 capsules daily.

The Bad

• Conflicting studies
• May aggravate insulin resistance
• Needs to be taken in proper amounts to be effective

The Good

• Various benefits including an increased metabolic rate, enhanced muscle growth and lower cholesterol levels
• Clinically proven to suppress appetite and reduce abdominal fat
• Widely available
• A more natural approach
• Relatively inexpensive

The way we see it

It grades out fairly well.  Time has at least proven that it can work, but to what degree seems to vary. There may be possible side effects, but it’s hard to pinpoint exactly what those may be, if any at all. It seems to perform best when paired with other ingredients.