There were 3 changes to the diet of the Israelites immediately after their circumcision in Joshua 5:
1) They ate Passover
2) They ate the harvest of Canaan
3) They stopped eating manna
There's a lot going on in Joshua 5:10-12. If you don't know the laws about Passover and First Fruits, you might miss it.
https://rumble.com/ve43ut-pass....over-and-manna-in-jo