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Tomatoes and tomato-based products are the major source of lycopene and other carotenoids in the human diet. Jivam Skin CareFresh tomatoes, soup, and most processed tomato-based products have predominantly the trans-lycopene isomer and a small amount of the cis-lycopene. In biological tissues, about 60-65 percent of lycopene is in the cis isomeric form. A study of the bioavailability of the two different isomeric forms of lycopene was conducted by feeding test subjects specially bred tomatoes that were either poly-cis or all all-trans. Lycopene from the poly-cis tomato was better absorbed than the all-trans tomato. Conversion of the trans to the cis isomer occurred after absorption. What is fed is what is absorbed, demonstrating that the conversion does not take place at the gut level. It is not clear if the conversion takes place in the tissues or in the liver. It is likely not due to an enzyme but a simple isomerization of the lycopene in the body. This seems to be supported by the fact that lycopene is stable in the tomato and once removed becomes susceptible to reactions. Based on studies, it appears that co-consumption of fat is essential for the absorption of carotenoids. The reason and significance for the isomeric trans-cis change in form is unknown.

http://www.healthcaresup.com/is-jivam-skin-care-scam-or-legit/

 

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