Ruby Chard is a red-ribbed type of chard with stems that range from white to yellow and red depending on the cultivar. It has a slightly bitter taste. The leaves are generally treated in the same way as spinach and the stems like asparagus. Fresh young chard can also be used raw in salads. (source)

Can guinea pigs eat ruby chard?

Yes, they can eat it in small amounts. It is quite acidic and so should be fed in large amounts to them as too much will do them harm

For more foods that guinea pigs can and can’t eat, check out our guinea pig food list.