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Product Review: CLA (Conjugated Linoleic Acid) for Slimming |
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HOW PRODUCTS WERE EVALUATED:
How Products were Selected:
Products were selected to represent those commonly sold and/or available nationally in the U.S. ConsumerLab.com purchased products on the open market through retail stores, on-line retailers, and direct sales or multi-level marketing companies. Products were not accepted directly from manufacturers.
Testing Methods:
The CLA weight loss products were analyzed for their CLA isomer fatty acid components by Gas Chromatography (GC) utilizing a modified AOAC method (Association of Official Analytical Chemists, International; Official Method 991.39).
Disintegration of non-capsule, non-chewable and non-time release formulations was analyzed utilizing USP (United States Pharmacopeia) 2040 recommendations entitled "Disintegration and Dissolution of Nutritional Supplements."
Products not having passing levels of key ingredients or contaminants were then re-tested in a second independent laboratory using similar methods and instrumentation. The identities of the products were not disclosed to the laboratories performing the testing.
Passing Score: *
To achieve a "Pass" in the testing, a product had to meet the following criteria:
- Contain a minimum of 100% of its labeled amount and a maximum of 135% of total CLA and specified CLA isomer ratios.
- Not exceed California Prop 65 levels for lead contamination in a recommended daily serving and, in no event, exceed 2 mcg of lead in a recommended daily serving. (The State of California has established its own strict standards for lead, including 0.5 micrograms of lead per serving per day for foods and most supplements. Products sold in California that exceed these levels are required to bear warning labels).
- Meet recommended USP parameters for disintegration for nutritional supplements (excluding capsule, chewable and time-release products).
- Meet all FDA labeling requirements.
A product passed if it passed each criterion in any one of the analyses.
* Passing scores allow for specific margins of technical error associated with each analysis. ConsumerLab.com reserves the right to disqualify a product at any time from passing its testing if it considers such product to present a safety risk or to provide misleading or inaccurate information in its labeling.
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