I just copied from EWTN since that was the easiest source for what the OP wanted. Just for clarification.
There was a story posted by one of the Eastern Catholics some time back that I’m reminded of. A priest is eating a cracker and a young man from his parish walks up to him and tells him he’s eating beef fat and milk (Eastern Catholic/Eastern Orthodox praxis including abstaining from milk). The priest responds, “No, I’m eating a cracker.”
I think we tend to get too caught up in what and what isn’t allowed, especially when personal applications may go beyond what is required. When one person hears that another isn’t eating A, B, and C because they think it violates the fast, they think they need to go as far or even farther, feeling however falsely, that they need to go further otherwise they aren’t a good Catholic. What works for one person doesn’t necessarily work for another and we shouldn’t apply arbitrary rules (beyond what the Church requires) to people who aren’t capable of meeting them and we shouldn’t make them feel guilty if they can’t match another person’s penance or practice. (Not to pick on you, just pointing out what I’ve seen and read on these fora.)