From the Guidelines
Eating kaolin is not recommended due to its potential health risks and lack of proven benefits. People may consume kaolin for various reasons, including cultural practices, traditional remedies for upset stomach or morning sickness, or due to a condition called pica. However, the use of kaolin as an adsorbent in treating acute diarrhea has been shown to have little to no benefit in adults, as stated in the guidelines for adults on self-medication for the treatment of acute diarrhoea 1.
Some key points to consider about kaolin consumption include:
- The potential for kaolin to bind to nutrients in the digestive tract, leading to nutrient deficiencies, particularly iron deficiency anemia
- The risk of harmful contaminants like lead or arsenic being present in the clay
- The possibility of intestinal blockages or constipation due to regular consumption
- The lack of evidence supporting kaolin's claimed detoxifying properties or mineral-providing benefits
As noted in the study on guidelines for adults on self-medication for the treatment of acute diarrhoea 1, well-controlled trials favor loperamide over adsorbents like kaolin in treating acute adult diarrhea. Therefore, it is advisable to consult a healthcare provider for safe, evidence-based treatments rather than self-medicating with kaolin.
From the Research
Reasons for Kaolin Consumption
- Kaolin eating is an ancestral and worldwide tradition, particularly in women, to relieve nausea and abdominal troubles 2
- It is thought to be highly prevalent in pregnant women because of its antinausea or therapeutic effects 3
- The practice is also thought to be provoked by some nutritional needs, but in modern society its etiology is obscure 3
Health Benefits and Risks
- There is limited evidence to suggest that kaolin consumption has significant health benefits, but it may help alleviate nausea and abdominal troubles 2, 3
- However, damaging effects such as anemia and intestinal troubles are well documented 2
- Compulsive disorders associated with kaolin intake are less known, but a severe craving has been observed in a young woman consuming kaolin for several years 2
- The mineralogical and chemical compositions of clay may vary from one region to another, and some studies have identified toxic minerals that can be harmful to humans if ingested 3
Comparison with Other Treatments
- Loperamide is an effective treatment for patients with painless diarrhea and is considered to be free of abuse potential 4, 5, 6
- Unlike kaolin, loperamide has a well-established mechanism of action and is available without a prescription 4, 5
- However, loperamide may have adverse reactions such as cramps and nausea, and its use should be avoided in certain patients, such as those with known hypersensitivity or evidence of obstruction or colonic dilation 4, 5, 6