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Everybody's health depends on detoxifying enzymes. These enzymes are so important to human health that the body makes them for itself. Making simple but smart choices for our diet and lifestyle are all that we need to reinforce our bodies' natural abilities to detoxify, without any need for expensive foods, the latest and greatest nutritional supplements, or hard-to-follow and hard-to-understand natural health practices. So long, that is, as we are only exposed to normal environmental toxins, rather than genuinely dangerous toxins — such as, for instance, alcohol poisoning that does require actual detox.

The Liver Is the Body's Detoxifying Organ
While there are detoxifying processes all over the body, most detoxification efforts take place in the liver. The liver creates a family of enzymes known as cytochrome P450 (or CYP, for short). These enzymes change molecules in specific ways to make less, or in some relatively uncommon instances, more toxic.
The way the CYP enzymes work is by combining toxins and potential toxins with oxygen, O2. One of the oxygen atoms combines with the target molecule to transform it into another compound. The other oxygen atom combines with hydrogen ions ("acidity," in this case a good kind of acidity) from the bloodstream to make H2O (water).
CYP enzymes aren't unique to humans by any means. Just about every life form makes them, including other animals, plants, bacteria, fungi, protozoans, and even fungi, although none of the 11,500 enzymes in this family has been detected in E. coli bacteria.
The thing that is important to understand about liver enzymes is that they don't exist in limitless amounts. If the enzyme is busy detoxifying one chemical, it can't detoxify another. "Toxicity" often is a matter of too much of a load on the liver, which can cleanse a lot of toxins but takes time to do so. To keep your liver working, and your body safe, it is most important not to overwhelm it.
The Liver Is Also Sometimes the Body's Pre-Toxifying Organ
Sometimes not having "enough" liver enzymes is a good thing. The liver enzyme CYP1A1, for instance, transforms otherwise harmless chemicals in tobacco smoke into the carcinogens that can cause liver cancer. Before the liver changes these chemicals, however, they are not carciogenic. People who have genes for "highly inducible" CYP1A1, meaning it is easily "switched on" by exposure to chemicals like those used in dry cleaning and in making gasoline, are far more likely to get lung cancer. For these people, avoiding chemical pollution may be as important as avoiding tobacco smoke.
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- Photo courtesy of kanenas-net on Flickr: www.flickr.com/photos/kanenas-net/6802531316
- Photo courtesy of 42409752@N07 on Flickr: www.flickr.com/photos/42409752@N07/6263072078