Bentonite clay is an effective remedy for food poisoning because it prevents poisons from being absorbed into the body, according to the Healthy Home Economist. However, some sources of bentonite clay contain high levels of aluminum and commercial emulsifiers and should be avoided.
Bentonite clay treats food poisioning by adsorbing harmful substances, meaning that the substances adhere to the outside of the clay rather than being absorbed into the clay, explains the Healthy Home Economist. Bentonite clay works quickly to neutralize bacteria and viruses.
You should be careful to choose a source of bentonite clay that do not contain high levels of aluminum and other toxic substances, advises the Healthy Home Economist. Activated charcoal does not contain such harmful substances and may be a suitable alternative.