Typically on a fat fast day, a person might consume more like 1200 calories on that day during Phase 2. I don’t claim to know a lot about this, but the little experience I had personally with a fat fast – which I discuss in my post here – leads me to not recommend fat fasts in general. That post discusses the results I had and why I think they may not be a good idea.
A fat fast may surely make the scale move but I’m not really sure if I’m losing fat or muscle because I don’t have a way of knowing it. It would be an experiment as we are unsure either way.
