I am sure you know they eat fly's and such, but i have a spider living on my window and at the same time have a small beetle infestation, because of this i sometimes find the beetle larvae so i drop them on the web, it seems to eat them fast, and its grown a lot in 3 weeks, any living food as long as its not bigger than the Spiders body is sufficient for it, a large fly bigger than the spider would also feed it sufficiently, they store food so it dose not matter what you give it but they prefer living things.
My best guess would me on the large spiders
Spiders spin webs not only for shelter but to capture their food. Insects, bugs, and other spiders get caught in these webs.
There are no spiders on Antarctica: there's no food chain for them there.
by their webs
because spiders do not have jaws for chewing.
flies
Of course spiders eat cheese. They like swiss cheese the best. You may think this answer is wrong but i am a leading scientist in animal habits and food and many months of research has concluded that spiders do eat cheese!
Some spiders build a web so their food will fly or crawl into it. Others make a tunnel and then surprises their prey by popping out of their tunnel and catching the food. Some spiders build a web net and drops it on their food and eats it when it's ready. There are many different ways spiders can catch their food.
some times birds
Wolf spiders can survive for several weeks without food, as they have the ability to store energy in their bodies.
They are carnivores as well.
spiders eat the bugs which eats the crops that farmers plant and grow for food