once again the subscribers of ironmag have thrown out the "show me proof" line
i didnt say it had been proven, all i did was say it has been shown to.
and then i followed it with a line, which should be very familiar to you all here. "eat real food, dnt over analyze things"
are you seriously going to argue that getting your micronutrients through real food sources, is less healthy than getting them through artificial supplementation?
if that is your argument i am truly baffled...
if you disagree with my generally accepted statement then YOU should be providing studies...
but sense you insist,
Possible adverse effects of CLA in humans
There are concerns that the use of CLA supplements by overweight people may tend to cause or to aggravate insulin resistance, which may increase their risk of developing diabetes.[8] Most supplements contain mixtures of two CLA isomers: the cis-9, trans-11 isomer (the predominant CLA isomer in milk and beef) as well as the trans-10, cis-12 (t10c12) isomer. It is the trans-10, cis-12 isomer that is linked to many adverse side effects. Research indicates that supplementation with t10c12 CLA dramatically increases rates of oxidative stress, to levels considerably higher than that observed in heavy smokers.[8] However, the evidence is controversial, and some studies using a mixture of c9t11 and t10c12 CLA showed no changes in insulin sensitivity.[31][32] Although researchers are still not sure of the long term health effects of consuming CLA from supplements, foods naturally enriched in CLA, such as beef and dairy, are a safe alternative.
In one study t10c12 CLA produced a 32% increase in biliary cholesterol concentration which increases the chance of gallstone formation.[33]
In 2006, a study by the US Department of Agriculture suggested that CLA can induce essential fatty acid redistribution in mice. Changes in docosahexaenoic acid (DHA) and arachidonic acid (AA) levels were observed in some organs. For instance, the t10,c12 CLA reduced the DHA content of heart tissue by 25%, while in the spleen, DHA content rose, and AA fell. DHA is an omega-3 fatty acid important to cardiovascular health and the dramatic reduction of DHA in heart tissue can have serious health consequences. In contrast, c9,t11 CLA did not alter DHA content in the heart, but did reduce spleen DHA slightly. [7] A study of CLA supplementation (equal amounts of c9,t11 and t10,c12) in hatchling chicks (2005) showed high mortality and low hatchability rates among CLA-supplemented groups, and also a decrease in brain DHA levels of CLA-treated chicks[1]. These studies raise the question of whether CLA may increase the risk of cardiovascular and inflammatory diseases, but it has yet to be established whether such changes occur in humans, and whether they are clinically relevant.