Yes, guinea pigs are able to eat corn silk.
First of all we should explain that corn silk is the long shiny fibers that are at the top of an ear of corn.
And for guinea pigs they can eat all parts of the corn plant.
Some things to watch out for before feeding corn silk to your guinea pig though is that there are no fungus, bacteria or pesticides on the corn.
Make sure you clean the corn before you give it to your piggy. Also make sure you only give raw and never cooked.
The great thing about the corn silk is that the vegetable fiber is healthy for guinea pigs as well.