Yes, until the last year I had a worrying overweight until the point it started to affect my health. I didn't have any diet, I had depression and the work in the office didn't allow me to do any kind of exercise, so I got 205,03 lbs. After my doctor warned me I tried to change my diet in every way possible, trying to eat all the nutrients I can but not eating much (specially in the dinner, if I have to stay hungry for a few hours, welcome) and avoiding junk or packed food, even today it's not an easy task, I try to eat at least 4 times everyday but in little quantities. Since I'm working at the office and studying at the same time, it's hard for me to exercise often, so I need weekends for this.
The most remarkable change I noticed at first was the fact that I lost a lot of weight by changing only my diet. Right now I keep losing weight but slowly, and that surprised me because I exercise often and try to eat healthy, then "how come I lost so much weight by only changing my diet, but I'm slower now when I'm even exercising", and the doctor told me it was better slower than fast. I reached the conclusion that losing weight is changing completely your lifestyle. Good luck with that!