Just doing intermittent fasting by itself didn't do much for me, but doing intermittent fasting where I also measured and reduced calorie intake allowed me to lose 15 pounds (from 185 to 170). The LeanGains website was really helpful. It's also worth noting that prior to starting this, I already had a relatively healthy diet and exercised regularly.

That being said, even the guy who made LeanGains doesn't claim it will work for everyone. But for the first month I did it I screwed it up (by not also restricting calorie intake) and saw no change, then after fixing that I lost about a pound a week.