CLA increases LBM

  1. CLA increases LBM


    Conjugated linoleic acid supplementation for twelv...[J Nutr. 2007] - PubMed Result
    Conjugated linoleic acid (CLA) alters body composition in animal models, but few studies have examined the effects of CLA supplementation on body composition and clinical safety measures in obese humans. In the present study, we performed a randomized, double-blind, placebo-controlled trial to examine the changes in body composition and clinical laboratory values following CLA (50:50 ratio of cis-9, trans-11 and trans-10, cis-12 isomers) supplementation for 12 wk in otherwise healthy obese humans. Forty-eight participants (13 males and 35 females) were randomized to receive placebo (8 g safflower oil/d), 3.2 g/d CLA, or 6.4 g/d CLA for 12 wk. Changes in body fat mass and lean body mass were determined by dual-energy X-ray absorptiometry. Resting energy expenditure was assessed by indirect calorimetry. Clinical laboratory values and adverse-event reporting were used to monitor safety. Lean body mass increased by 0.64 kg in the 6.4 g/d CLA group (P < 0.05) after 12 wk of intervention. Significant decreases in serum HDL-cholesterol and sodium, hemoglobin, and hematocrit, and significant increases in serum alkaline phosphatase, C-reactive protein, and IL-6, and white blood cells occurred in the 6.4 g/d CLA group, although all values remained within normal limits. The intervention was well tolerated and no severe adverse events were reported, although mild gastrointestinal adverse events were reported in all treatment groups. In conclusion, whereas CLA may increase lean body mass in obese humans, it may also increase markers of inflammation in the short term.
    Note how it increases c-reactive protein which is a bad thing but fish oil can counter-act this.

    I wonder if the increase in LBM is actually because of the rise in C-reactive protein. CRP is a marker for inflamation and anti-inflamatories are known to be anti-anabolic.

    Here are some more studies:
    The effects of conjugated linoleic acid supplement...[Med Sci Sports Exerc. 2006] - PubMed Result
    Six months supplementation with conjugated linolei...[Br J Nutr. 2007] - PubMed Result
    This last one shows it decreases fat mostly in the legs of women.
    The reduction in fat mass was located mostly in the legs (Delta=- 0 x 8 kg, P<0 x 001), and in women (Delta=-1 x 3 kg, P=0 x 046) with BMI >30 kg/m2 (Delta=-1 x 9 kg, P=0 x 011), compared with placebo. The waist-hip ratio decreased significantly (P=0 x 043) compared with placebo. LBM increased (Delta=+0 x 5 kg, P=0 x 049) within the CLA group. Bone mineral content was not affected (P=0 x 70). All changes were independent of diet and physical exercise.


  2. Bumping this up for a new study I found.

    http://www.jlr.org/cgi/content/abstract/44/12/2234
    Seems the more I read on CLA the more I think I should stay away from it.
  3. Unbreakable
    David Dunn's Avatar

    You're in good company.

    Is CLA good for our health?
    We live in a time where our planet suffers from two epidemics simultaneously - starvation and obesity.

    Look at all these little kids taking care of the music biz, don't their business take good care of me.

    I have the fire, I have the force, I have the power to make my evil take it's course.
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