Originally Posted by teaser

Coffee might affect a fast, but that's not the same as saying that it will be worse than water fasting. Whether coffee makes things worse or better is so little studied at this point that personal preference might be the best way to go.

The leaner you get, the more tricks you have to use to get any leaner.

When it comes to weight loss/maintenance, I find an eating window more useful than every other day fasting. Maybe because I've only used it when I wasn't all that far from goal. Studies show people eating more on feeding days, but not enough to make up for fasting days--my appetite does expand on the feeding days enough to make up for the fasting days, but moreso the leaner I am.