Diet Can Guinea Pigs eat Bok Choy? December 6, 2016 Emma 1 Comment Bok choy is a type of Chinese lettuce that is also known as pak choy. In fact, I’m not sure if I’ve ever tried it!! So can guinea pigs eat bok choy? Yes they can! Since bok choy is high in calcium I’d say only in small amounts once or twice a week 😀 Share!