You can…

But if you want to follow the Catholic fasting discipline, you would abstain from meat and fast from the end of the Mass of the Lord’s Supper with the disciple on Holy Thursday to the end of the Easter Vigil on Holy Sunday morning.

So the fasting that applies on Good Friday applies on Holy Saturday as well, if you want to participate in the fullness of the discipline you are good to go.

Catholic Church’s current rules say, yes. The only days on which one must skip meat are Ash Wednesday and the Fridays of Lent.

Orthodox Church rules, say no.

Neither meat nor fish is allowed, but, if I am reading my calendar correctly, one may use... read more>>>https://buggingquestions.com/question/what-is-holy-saturday-can-you-eat-meat-on-the-day-before-easter/

babatope0000:
You can…
But if you want to follow the Catholic fasting discipline, you would abstain from meat and fast from the end of the Mass of the Lord’s Supper with the disciple on Holy Thursday to the end of the Easter Vigil on Holy Sunday morning.
So the fasting that applies on Good Friday applies on Holy Saturday as well, if you want to participate in the fullness of the discipline you are good to go.
Catholic Church’s current rules say, yes. The only days on which one must skip meat are Ash Wednesday and the Fridays of Lent.
Orthodox Church rules, say no.
Neither meat nor fish is allowed, but, if I am reading my calendar correctly, one may use... read more>>>https://buggingquestions.com/question/what-is-holy-saturday-can-you-eat-meat-on-the-day-before-easter/

Why would a non catholic want to follow catholic traditions? Wouldn't that kind of be like a non Muslim following Muslim traditions?