Crazy.
The FDA has previously warned about bentonite clay:
FDA Warns Consumers Not to Use “Best Bentonite Clay” (2016): https://www.fda.gov/Drugs/DrugSafety/ucm491396.htm
The tests were crowdfunded by Tamara Rubin, "Lead Safe Mama" https://tamararubin.com/2025/01/toothpaste-chart/
None are...