Try reading Wheat Belly Total Health by Dr William Davis. The premise is eliminating all wheat and grain from our diets. We don't get fat because of the fat we eat, we get fat from the insulin our bodies produce, or diabetics give themselves. Grains have the highest glycemic index which means it spikes your blood sugar the fastest and highest, so in response you produce a lot of insulin to get that glucose out of your blood stream. Now if you are exercising regularly, or have a high metabolism, your body will use that glucose, or energy. But if not, it will convert that to fat and store it in your belly for later use!
The diet is similar to Paleo and Adkins and such, and as said before, eat throughout the day and don't skip any meals. I lost 16 pounds the first 2 plus months and flattened out a bit, then picked up my cardio and I work out now at least 5 days a week. I have kept off a total of 25 for over a year now and have leaned up a lot from where I started. I'm over 50 and have never felt better.
There are many different ways to lose weight and I don't like "dieting" because it's an up and down thing so take the whole "lifestyle" change. It's a balance of eliminating many of the bad things for us, eating smaller portions throughout the day, and EXERCISING regularly. Make sure you do both cardio and weight training, and if you are older than 50, or sooner, flexibility and stretching are important.
Dfferent things work work for different people and if you can get into some science and the why, this book I mentioned makes a lot of sense.