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Bentonite Clay Dangers: Can It Cause Cancer?

Bentonite clay is generally considered safe when used externally or for cosmetic purposes. There is no conclusive evidence that bentonite clay causes cancer.

It is important to note that bentonite clay has not been classified as a known or probable human carcinogen by the International Agency for Research on Cancer (IARC).

Bentonite clay belongs to the smectite group of clays, which are known for their ability to expand when exposed to liquid. It is a clay rich in minerals such as silica, magnesium, calcium, sodium, copper, iron, and potassium.

Bentonite clay is classified into two types: sodium bentonite clay and calcium bentonite clay. The ratio of key minerals in these types varies, resulting in subtle differences in their properties and characteristics.

How exactly does bentonite clay work?

Bentonite Clay picture

According to scientific understanding, bentonite clay is believed to function by adsorbing oils and impurities from the skin. The theory suggests that bentonite clay has the ability to attract and bind to the molecules or ions of these materials. As the clay is removed from the body, it carries the toxins or other molecules along with it.

When applied topically, bentonite clay may have the capacity to adsorb oils and bacteria, providing potential benefits for the skin. When consumed orally, the clay may adsorb toxins or unwanted substances from the digestive tract.

In addition to its adsorption properties, bentonite clay naturally contains minerals like calcium, magnesium, and iron.

Can It Cause Cancer ?

Bentonite clay is commonly used for skincare and haircare purposes, and it is generally considered safe. However, it’s important to note that health and cosmetic products are not regulated by the FDA, which means there is uncertainty regarding their composition and effectiveness.

If you decide to try bentonite clay, it is recommended to perform a patch test on a small area of your skin to ensure there is no adverse reaction.

It is worth mentioning that the FDA has detected elevated levels of lead in a specific brand of bentonite clay called “Best Bentonite Clay.” Exposure to lead can have severe detrimental effects on the central nervous system, kidneys, and immune system.

Therefore, it is essential to be cautious when selecting bentonite clay products and opt for reputable brands with reliable quality control measures.

While bentonite clay is generally considered safe, it is possible to consume excessive amounts. Always follow the instructions provided on the package and avoid consuming the clay continuously for more than four weeks without taking breaks.

Some health benefits of bentonite clay

Bentonite clay has a number of potential advantages. Let’s look at some of the ways it can benefit our health and well-being:

  • Protecting against bacterial infections
  • Supplying nutrients
  • Aiding in dental health
  • Potentially helping with weight loss
  • Treating skin conditions
  • Aiding in detoxification processes
  • Supporting digestive and respiratory processes
  • And more

Side Effects

Using bentonite clay is generally safe, and there are no known serious side effects. However, it’s important to follow the instructions on the package and not consume the clay for more than four weeks continuously without taking a break.

While there have been a few rare cases of people getting sick from consuming too much bentonite clay, these instances are uncommon when used as recommended.

If you’re planning to use the clay on your skin, do a patch test on a small, hidden area first to check for any skin sensitivities or allergies. It’s always a good idea to test a new product on a small skin area before applying it to your face or body.


Bentonite clay is an ancient remedy that may hold promise as a treatment for a variety of health problems. When used in moderate amounts, it has a low risk of side effects.

People with health conditions should consult their doctor before using bentonite clay, as they should with any natural remedy.

Chukwuebuka Martins

Chukwuebuka MartinsĀ is a writer, researcher, and health enthusiast who specializes in human physiology. He takes great pleasure in penning informative articles on many aspects of physical wellness, which he then thoroughly enjoys sharing to the general public.

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