How do Catholics fast? No food OR drink at all? For how long? Is there modern precedent in the Catholic church for communal fasting?
I’m not Catholic & couldn’t tell you. But any fast, when prayerfully directed, should be of benefit.
Certain demons are immovable save through prayer and fasting.
As recommended in the article...
People participating in the fast will consume only liquids from 12 a.m. through 6 p.m., consume one meal a day, practice abstinence and pray, McBride said.
Fasting is still done but it isn’t as bad as it sounds. Generally you can take food in but just in limited...reasonable quantities. If you have health issues or are aged there are no restrictions. It is all voluntary...it is a sacrifice for those suffering, in this case the victims of the January 6th persecution. Along with fasting comes prayer, if you are Catholic we do rosaries...considered the greatest weapon against evil. But, if you are Protestant pray as you normally do, it is all good. Prayer works.
"People participating in the fast will consume only liquids from 12 a.m. through 6 p.m., consume one meal a day, practice abstinence and pray"