EPA now calls chalk a pesticide
The same mineral in Tums and plant milk is now approved by federal regulators for unlimited use in crop pesticides.
By Foodie Pundit Newsroom - Published - Updated - Section: Policy Regulation
Key points
- The EPA has exempted calcium carbonate, a common food additive and supplement, from residue limits when used as an inert ingredient in pesticides.
- This decision means there is no legal limit on the amount of calcium carbonate that can remain on food from pesticide use.
- The EPA initiated the rule change on its own, citing the mineral's long history of safe consumption.
- The rule became effective on August 17, 2026, after a public comment period in which the EPA received no comments.
- While the change is official, it remains to be seen which pesticide manufacturers will incorporate calcium carbonate into their products.
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