Tag: unapproved devices

ZYTO: An Electrodermal Diagnostic Device Is Tested and Fails Miserably

ZYTO is a bogus, illegal electrodermal diagnostic device that claims to evaluate organ function and make dietary recommendations. Repeat testing produced results that were wildly inconsistent. The device produces noise, not meaningful information.

/ August 29, 2017

Electrodermal Testing Part II: Legal and Regulatory Aspects

Last week I described electrodermal testing. I’m sure many readers thought, “There oughta be a law against that.” Well, there are laws. Unfortunately, having laws and enforcing them are two different things. Some of these devices are not approved at all. Most have received 501(k) approval from the FDA as biofeedback devices so similar to previous devices that they do not require...

/ July 12, 2011