I should preface this with saying that I have PCOS and have hypothyroidism (treated with ‘ERFA’) so my metabolism is apparently already compromised. Lots of typical weightloss regimes simply do not work for me but I have had success with fasting and IF in the past.
I noticed that the only real way for me to lose weight is not to spread my allowed calories (under 500 for me) across the day but really eat in one or two sittings. If I snack my calories then it doesn’t seem to make any marked change to my weightloss but if I am super strict, only eating once or twice in a day then it does work.
Just curious to find out if this is the same for others or not and why this might be? Is it ‘ketosis’ or something similar? Is it because I have insulin resistance? I would love to hear what people think?

I started to come to this conclusion after I had done some IF for a good couple of years. I noticed that it was only when I made a very strong effort to eat once or twice a day, with absolutely no food in between, that it impacted on my weightloss.
A few years ago, I saw a consultant about PCOS and her advice, as far as diet was concerned, was that snacking was very harmful if a person had insulin resistance. The theory went something along the lines that every time we eat, irrespective of whether it’s a ‘healthy’ food (a few blueberries in my case), more insulin is released and we become awash with insulin. I’m wondering if this is what is happening when I do a fast day? Perhaps it’s perception but I don’t think so. I only see movement in my weightloss when I don’t pick at food. I find it very tough but I think the health benefits of some fasting are a big plus.