Detoxification foot pads are
pseudoscientific
Pseudoscience consists of statements, beliefs, or practices that claim to be both scientific and factual but are incompatible with the scientific method. Pseudoscience is often characterized by contradictory, exaggerated or unfalsifiable claim ...
alternative medical adhesive foot pads or patches that manufacturers claim can dramatically improve health when placed under the feet during sleep. Some of these pads may contain ingredients such as "distilled bamboo
vinegar
Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to ...
" that allegedly pull toxins from the body, but critics have shown that the process is not scientifically viable.
On January 3, 2008, the United States
Food and Drug Administration
The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food ...
(FDA) released an urgent warning regarding the potential dangers of many imported pharmaceutical substances including several brands of detox foot patches. In April 2008, in response to questions from the
Associated Press
The Associated Press (AP) is an American non-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association. It produces news reports that are distributed to its members, U.S. n ...
, an FDA spokeswoman said regarding the agency's investigation of the claims made for Kinoki foot pads that "basically, when we open up a case it means that the violation might be in terms of the Food, Drug and Cosmetics Act, such as when (product makers) make false, misleading claims."
In August 2008,
National Public Radio
National Public Radio (NPR, stylized in all lowercase) is an American privately and state funded nonprofit media organization headquartered in Washington, D.C., with its NPR West headquarters in Culver City, California. It differs from othe ...
commissioned a laboratory test to look for heavy metals in used pads, which Kinoki claims are extracted from the body. The test found none. NPR also discovered that the pads change from white to grey when they are exposed to moisture, including sweat, and not necessarily because they are absorbing other substances.
The Japanese company Kenrico claim that their pads have a positive effect on the health of the users, and that they remove heavy metals from the body. There is no evidence that these products work and although the skin is one of the body's largest organs of detoxification, there is no proposed mechanism as to why these patches would increase the detoxification rate above baseline.
Effectiveness
While the detoxification foot pads seem to be popular among young populations in some regions, the effect of the pads remains unclear. "Removing heavy metals from the body" seems to be good for health; however, the human body needs certain amount of heavy metals such as zinc, iron, copper, etc. Excessive amounts of heavy metal can cause disease. Although absorption through skin is one of the ways for the human body to take in heavy metals, it is not clear if the heavy metals can be pulled out of the body through skin. The circadian rhythm is not related to the heavy metal detox, either. There is no evidence that bamboo vinegar has the function of attracting heavy metals. On the other hand, detoxification foot pads can not accurately control how much heavy metal to be “detoxicated” from the body. The pads have no evidence of identifying what they claim to remove, or the way of measuring its level in body.
No studies have been done to measure the amount of accumulated heavy metal on the pad after it has been left overnight. The Japanese company Kinoki claimed their foot pad to be able to cause weight loss by removing toxins, metabolic wastes, heavy metals and chemical from the body. Kinoki also claimed that the pads can treat various kinds of disease, including headaches, depression, and even a weakened immune system. The U.S District Court for the District of New Jersey ruled that those claims were unsupported.
See also
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Detoxification foot baths
Detoxification foot baths, also known as foot detox, ionic cleansing, ionic foot bath and aqua/water detox are pseudoscientific alternative medical devices marketed as being able to remove toxins from the human body. They work by providing an ...
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Detoxification
Detoxification or detoxication (detox for short) is the physiological or medicinal removal of toxic substances from a living organism, including the human body, which is mainly carried out by the liver. Additionally, it can refer to the period of ...
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Detoxification (alternative medicine)
Detoxification (often shortened to detox and sometimes called body cleansing) is a type of alternative-medicine treatment which aims to rid the body of unspecified "toxins" – substances that proponents claim accumulate in the body over ...
References
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Alternative detoxification
Pseudoscience