Silica gel packets in packaging may be mistaken for sugar or salt. In general, consumption by adults is not harmful, although children and small pets may be affected.
Material Safety Data Sheet for Silica Gel, Indicating, PDF, Silicon Dioxide
Is Silica Gel Toxic?
What Is Silica Gel and Why Do Packets of It Come With Everything You Buy?
Oxygen Absorber vs. Silica Gel
Avoiding silica gel formation using the dry digestion process for the
Silicol – silicol®gel – for gastrointestinal disorders
Indicating Silica Gel Manufacturer
Silica Gel Blue MSDS, PDF, Silicon Dioxide
Silica Gel Chromatography MSDS, PDF, Silicon Dioxide
Silica Gel White MSDS
What Is Silica Gel, and What Happens if You Eat Silica Gel?
The silica gel extraction process