I lost a little over 50lbs a number of years ago, following a 5:2 diet. Quite frankly, I found it pretty horrible. Selecting 2 days in which you won't eat (much

I lost a little over 50lbs a number of years ago, following a 5:2 diet. Quite frankly, I found it pretty horrible. Selecting 2 days in which you won't eat (much) is pretty tough, and the obvious candidates would be your working days, but you should expect to be grumpy AF during them in all honesty. These days, I generally stick to a 16:8 approach of IF (I typically eat between 13:00-21:00). I find that it works pretty well for me. I should note that I'm very active (exercise every day, running, cycling, or lifting weights), and that I still typically eat 3 meals, albeit within a smaller window. I think being sceptical of food science is smart, so all I can say is that it works for me.