Russian Vine... Guinea Pigs

[gi77on]

Hi guys,

Sorry if this isn't in the correct section, I wasn't sure where to put it.

I have a lot of Russian Vine growing across my garden wall and regularly trim it down. My guinea pigs have been eating it for years and love it.

They all generally have lived long lives and I'm wondering if it's to do with the Russian Vine.

Anybody have anything similar?

Thanks