I tried intermittent fasting as an alternative to relatively fastidious calorie counting and ended up slowly gaining weight due to snackier food choices which I equalized with biweekly all day fasts. I'm sure I can make it work but I prefer meal prep and having regular energy levels throughout the day which gives me much more flexibility in terms of other fitness goals, i.e. I had a much narrow window of performance at gym under IF and I stopped mostly because my it got in the way of gym scheduling.