Diatomaceous Earth (Food Grade) for Digestive Health

Research suggests that the evidence base for food grade diatomaceous earth and digestive health is extremely limited, with available laboratory research raising some safety considerations rather than demonstrating clear benefits. The single identified study, an in vitro cell culture investigation published in 2024, examined how various forms of silica affected human colon cells and found that diatomaceous earth produced the strongest cellular stress response among the silica types tested, including concentration-dependent reductions in cell mitochondrial activity and elevated markers of oxidative stress. Studies indicate that these findings were generated under controlled laboratory conditions using isolated colon cells, which may not accurately reflect what occurs in a living digestive system, and the researchers framed their work primarily as a contribution to risk assessment rather than a therapeutic evaluation. Overall, the current published evidence does not establish a clear benefit for digestive health applications and points toward a need for greater caution and further research before drawing conclusions about safety or efficacy in humans.