My cat eats flies, is it dangerous?

Personally I don't think so because my cat chases and eats flies too and it does nothing to him. But I guess there is no harm in asking your vet

No, most cats do it, just be careful your cat doesn't eat a wasp or any other stinging insect because this could be dangerous!

No not at all on the contrary it brings them some protein :)

No don't worry, there is no risk for your cat, mine does the same :)

Great, thank you for your answers!