Silicon gel is just Silicon Dioxide in an amorphous structure that allows water to fill the voids. So basically its just water absorbing sand.

Sometimes it is doped with chemicals to indicate humidity, which is very toxic.

There’s enough of the stuff in a pack that may be enough to hurt you by drying your throat and carrying stomach acid around.

Should feel like a bad digestive issue, for a short time.

Just to add, there’s a lot of processed foods that have it.