Efficacy of conjugated linoleic acid for reducing fat mass: a meta-analysis in humans.

Whigham Leah D., Watras Abigail C., Schoeller Dale A.
The American journal of clinical nutrition, 2007



Conjugated linoleic acid (CLA) has been shown to be an effective supplement for reducing fat mass in animals, whereas results in humans have been inconsistent.


This is a meta-analysis of human studies in which CLA was provided as a dietary supplement to test its efficacy in reducing fat mass.


We searched the PubMed database (National Library of Medicine, Bethesda, MD) and references from the resulting search to identify studies in which CLA was provided to humans in randomized, double-blinded, placebo-controlled trials and in which body composition was assessed by using a validated technique.


We identified 18 eligible studies. Of these, 3 were single-isomer studies, and results comparing CLA isomers were inconclusive. We compared the length of treatment by using studies in which a mixture of purified isomers were used and those in which purified trans-10,cis-12 isomers were used. This comparison indicated that the effect of CLA was linear for up to 6 mo and then slowly approached an asymptote at 2 y. An analysis of the dose effect indicated that fat loss compared with placebo was -0.024 kg x g CLA(-1) x wk(-1) (P=0.03). After adjustment to the median dose of 3.2 g CLA/d, CLA was effective and produced a reduction in fat mass for the CLA group alone (0.05 +/- 0.05 kg/wk; P<0.001) and for the CLA group compared with placebo (0.09 +/- 0.08 kg/wk; P<0.001)


Given at a dose of 3.2 g/d, CLA produces a modest loss in body fat in humans.

Category:Weight Loss

The best supplements with Clarinol® in Weight Loss category: Keto Actives.

Articles similar to "Efficacy of conjugated linoleic acid for reducing fat mass: a meta-analysis in humans."

Previous article

Antitubercular and anti-inflammatory properties screening of natural products from Plectranthus species.

Next article

A review on effects of conjugated linoleic fatty acid (CLA) upon body composition and energetic metabolism.