I did the low fat thing back in the day when it was all the rage. And I did lose about 70lbs. The thing is, I STARVED the entire time. Now a lot of it was my fault, because I was eating tons of fat-free and very low fat carbs, and not getting near enough protein. But still, I would literally lie on the couch with my eyes closed dreaming and fantasizing about food every evening, just willing myself not to eat. What a misery that was! One week in New Orleans eating whatever I wanted because I was "on vacation", and that was the end of that! Steadily gained all the weight back plus a whole lot more.
This time, I am eating a very balanced diet full of protein, fruits and veggies, very few simple carbs, and plenty of healthy fat. Not only are my meals delicious and so, so nutritious, but I am totally satisfied at the end of the day when the eating is done.
Just posting to give you my experience. Go ahead and give whatever you think will work for you a try, but please feel free to re-think it if you are lying there starving like you could eat a horse. There is no need to suffer miserably with hunger to do this -- I swear!
BTW, post wherever you are interested, and read, read, read. There is a treasure-trove of information all at your fingertips here!!