I'm not. Pretty much atheist.
Definition of fasting: Fasting is the voluntary abstinence from food and sometimes drink for a set period, practiced for religious, spiritual, or health reasons.
There's no 'vegan' version. More so any religious version as the concept of veganism is modern.
What are the Greek Orthdox 'rules' as such? And is it as I also said like Lent? So less actual fasting and more about going without certain foods as a way of showing faith?
Regardless there are a bunch of protein options. The bigger issue is, under the headline of being 'Vegan' how they are processed.