Is calcium sulfate bad for health?

Answer 1

Calcium sulfate is a common laboratory and industrial chemical. In the form of γ-anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. In the natural state, unrefined calcium sulfate is a translucent, crystalline white rock. Generally, it is safe, however like all inert anhydrous powders, it does carry the risk of causing irritation to mucosa membranes, especially when inhaled or in the eyes.

Answer 2

Calcium sulfate is generally recognized as safe by the Food and Drug Administration (FDA) when used in food products. However, inhaling large amounts of calcium sulfate dust can irritate the respiratory tract, so it is important to follow safety precautions when handling it in powdered form.