I packed cheese, beef jerky and some other stuff y'all recommended...

If I had to guess, given the timing of this, he's probably on the Hajj. Around this time 1.5 million Muslims make a pilgrimage to fulfill one of the main tenants of the religion, to make a once in a lifetime pilgrimage to Makkah. This is tied to Eid that's coming in a few days.

Where I suspect this ties in is, one of the steps in this journey is to stay in Mina, which is basically a tent city outside of Makkah. The bathroom facilities are lacking at best, specially if you are used to clean western style sitting toilets. It's not uncommon for people to walk back to their hotels and take care of business and walk back to their tents. Depending on where the hotel is and where your tent is, this could be a half hour to an hour walk. Let's just say if someone is very particular about the throne and is situated far from the hotel, fasting and going without food to reduce poop frequency seems like a very attractive option.

In my experience, the bathrooms for the American and Canadian tents weren't too bad to use in a pinch. And I was blessed that my hotel was only a 15 mins walk, so my wife and I would walk over every morning, take a nice shower and freshen up and walk back (there is a recommended time requirement on how much of each day you can spend outside the boundary of the city). The food there was too tempting for me to go with the no poop route this brave soul is embarking on. (For context, they would have fresh squeezed juices, lamb and rice dishes as big as small cars, teas, coffees, and the sweets were amazing.... And it was all free!).

Eid Al Adha-https://en.wikipedia.org/wiki/Eid_al-Adha?wprov=sfla1

Hajj - https://en.wikipedia.org/wiki/Hajj?wprov=sfla1

There was a post on asklemmy where someone asked how to go poopless for 3 days. No one knows why, but history has been made.