How long can Bulma keep Beerus fed on exclusively new food?

[MisterGort]

I’ve had this thought in my head for awhile. If Bulma exclusively shares new food with Beerus and Whis to keep the planet safe, how long do you guys think it would take for Earth’s palette to run out?
I’d love to hear what you guys think whether you give an educated guess or you research it!

Thank you! c;