Good and bad veggies?

[frodoandsam]

I have been feeding my guinea pigs kale, romaine lettuce, bell peppers and carrots.
But, when researching if kale stems are okay, I ran into a few sites/people that said
kale should be fed once a week or two weeks even and that it isn't good for them?
I was wondering if this is true, also what kind of veggies do you feed your guinea
pigs daily, and how much for two piggies? I feed mine a yogurt bucket a day...
(three times a day; morning, afternoon and evening.)

Thanks for helping!

 

[Lady Kelly]

Our diet guide should give you the information you are looking for Long Term Balanced General And Special Needs Guinea Pig Diets