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Product Review: CLA (Conjugated Linoleic Acid) for Slimming |
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Initial Posting: 11/15/05
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CLA MAY HELP WITH SLIMMING, BUT MAY NOT BE RIGHT FOR EVERYONE. GET THE FACTS NOW!
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Alphabetical list of brands for the products tested.
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Allmax |
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Natrol |
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Vitamin World |
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AST |
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Natural Max |
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GNC |
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Nature's Sunshine |
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Metagenics |
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Nutrilite |
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Make sure the supplement you take passed our test and is right for you! Isn't your health worth it?
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ConsumerLab.com tested supplements containing CLA (conjugated linoleic acid) from popular brands including Allmax, AST, GNC, Metagenics, Natrol, Natural Max, Nature's Sunshine, Nutrilite, Ultimate Nutrition, and Vitamin World.
Only 75% of the labeled amount of chromium was in one product. The others contained their claimed amounts. Studies with CLA show that it may help reduce fat, improving the ratio of lean to fat body mass.
You must subscribe to get the full test results and ConsumerLab recommendations. In this comprehensive report, you'll:
- Which products failed or passed our tests and why.
- What to consider when buying and using weight loss supplements.
- Concerns and cautions.

If you already are a subscriber, LOG-IN now.
Also see our Reviews of Weight Loss Supplements and Chromium Supplements. |
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Summary for non-subscribers:
Test Results by Product:
Listed below are 3 examples of products that passed testing. Results (pass and fail) for an additional 8 products that CL selected and tested and one that is similar to a passing product but sold under a different name are available to subscribers in the full report (Log-in or Subscribe now for the full report). The products shown below were tested through CL's Voluntary Certification Program.
Also shown are the claimed amount of CLA and serving sizes recommended on labels. Products listed as "Approved" met their label claims and ConsumerLab.com's quality criteria (see Passing Score).
The full list of ingredients and special dietary designations (such as gluten-free) is available for each product by clicking on the word "Ingredients" in the first column.
EXAMPLES OF RESULTS OF CONSUMERLAB.COM TESTING OF SUPPLEMENTS USED FOR CLA (CONJUGATED LINOLEIC ACID) SUPPLEMENTS
To find retailers that sell some of the listed products click here.
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Product Name
Click on "Ingredients" for Full List |
Manufac-
turer or Distri-
butor |
Labeled Amount of CLA per Unit
Suggested Daily Serving on Label;
Amount of CLA Daily |
APPROVAL STATUS:
APPROVED
(Passed)
NOT
APPROVED
(Failed)
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Contained Labeled Amount of CLA
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GNC Pro PerformanceŽ CLA*
Ingredients
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Dist. by General Nutrition Corporation |
1,000 mg/ softgel
3 per day;
3,000 mg |
APPROVED
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NutriliteŽ CLA 500*
Ingredients
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Dist. by Access Business Group International LLC |
500 mg/ softgel
6 per day;
3,000 mg |
APPROVED
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Vitamin WorldŽ CLA 1000 mg*, NNFA GMP
Ingredients
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Mfd. by Vitamin World, Inc. |
740 mg/ softgel
4 per day:
2,960 mg |
APPROVED
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| *Tested through CL's Voluntary Certification Program prior to, at time of, or after initial posting of this Product Review. |
Manufacturers may change ingredients and label information at any time. So be sure to check labels carefully when evaluating the products you use or buy. If a product's ingredients differ from what is listed above, it may not be the same as what was tested. CL cannot assure that results for other samples will be the same as those listed above because because there may be a lack of consistency both within and across lots.
The information contained in this report is based on the compilation and review of information from product labeling and analytic testing. CL applies what it believes to be the most appropriate testing methods and standards. The information in this report does not reflect the opinion or recommendation of CL, its officers or employees. CL cannot assure the accuracy of information provided to it by third parties. Liability to any person for any loss or damage caused by errors, omissions, or inaccuracies in this report is hereby disclaimed.
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Copyright ConsumerLab.com, LLC, 2005. All rights reserved. Not to be reproduced, excerpted, linked to, or cited in any fashion without the express written permission of ConsumerLab.com LLC.
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