Here are the items you can get in Pokemon GO:
You can also buy bag upgrades and Pokemon storage upgrades, but they aren't really items... you just buy them and it increases the applicable storage.
go to your PC then go to move items then get the items from your Pokemon
Go lakers
POKEMON
you have to go to the market basement and grab all the items!!
Go to the Pokemon's status screen, go to items and select the item.
Use items or go to a Pokemon Center to heal your Pokemon.
first go to a website called www.Pokemon serbii.net then see all Pokemon that has items
you go to the gear station in nimbasa city and go to the brown train ( all you do there is get pointless items)
well, there are tons of items, the main items are spheres (those let you buy things), fossils (you can go to oreburg and turn those fossils into other pokemon), and many many more.
Find them all.
for food-like items, go to the trailer on the route west of Nimbasa city. for relic items, go to the riches house in undella town. for rock/gem-like items, go to the pokemon center in Icirrus City.
go inside the icy path and pickup all items you see one of them will be waterfall