I did IF before my Peat days, and it was great for weight loss for a few months. In fact, it was the only thing I found to work, before using Colpo's Fat Loss Bible plan and a Fitbit. I did seem to run into some problems in the winter, and blamed IF, but looking back now, I'm not so sure. I was doing LOT'S of crazy things by that point, and I found out I was really high in iron, too.
I'm thinking of giving it a go, with a more "Peaty" approach (including plenty of carbs in the eating window). The more I've looked, the more that something like a 14-24 fast or so seems compatible with a lot of Peat's ideas, ASSUMING you're in pretty good health.
Yep, I agree that intermittent fasting is VERY effective for fat loss, as well as excess water. I am also back to doing this not so much for weight loss but I now feel it's the only way I can function at my highest preferred level mentally, emotionally and physically. For the eating window, Peat principals are applied and it appears to be perfect for myself and life.
Granted, I consider myself a "skinny fat" person, so I have plenty of stores to get me by on my fast days. Although, I'm probably not using much of it since you really won't tap into your stores (depending on activity level, metabolism, etc) until day 3 (as I understand, could be wrong) or after and I am doing a 3 off and 6 on approach. I am not doing just water on the 3 off, but rather OJ, occasional raw milk, water, coconut oil coffee, and some fresh juiced juice.
Still exercising such as weight training, and calisthenics with moderate walking.