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ZYTO device flunks tests

Posted 04 September 2017

ZYTO Corporation, of Orem, Utah, sells several devices that it claims are useful for determining what dietary supplements, herbs, or homeopathic products might be useful. The devices use a hand cradle that relays signals to and from a computer that runs ZYTO’s proprietary software. ZYTO claims that the software “sends stimuli to the body using digital signatures that represent actual things” and interprets fluctuations in skin resistance that indicate “the body’s degree of preference for the items being assessed.”
Reference: Barrett S. ZYTO scanning: Another test to avoid. Device Watch, Aug 22, 2017

Last year, Dr. Stephen Barrett was able to obtain a working ZYTO device and tested himself 43 times in ten days. Sixteen of the tests were “basic” scans that purported to detect problems with 20 body organs. These scans reported an average of 11 problematic organs, but the organs specified and the supposedly corrective products varied considerably from one test to another. He also took 12 food-category tests and 15 individual-food assessments. As with the basic scans, the individual-food scores were wildly inconsistent, with many foods scoring “positive” (recommended) on one test and “negative” (not recommended) on another administered a few minutes later. The basic scan results were so inconsistent that they could not possibly be clinically meaningful. In addition to being inconsistent, the food-category biosurveys recommended excluding so many foods that the resultant diets could be extremely unhealthful. These findings confirmed that the claim that ZYTO devices can provide useful information is preposterous.
Reference: Barrett S. Close examination of a ZYTO electrodermal screening system. Missouri Medicine 114:238-244, 2017

Source:  Consumer Health Digest #17-34, September 3, 2017

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