[Jeff Chandler]

instead of restricting calories two days a week, you would restrict the number of carbs you consume twice a week

Restrict them to what? And what are the details of "fasting" in this article, which seems low on facts.

[Jeff Chandler]

three, one-day (36 h) dietary interventions in a random order, with a 5-day washout period between interventions

[ConservativeMind]

The study:

https://link.springer.com/article/10.1007/s00394-025-03646-5