I'll tell you what worked for me. It isn't quick, but it has lasted.
1) I cut out fried foods, which working on the road meant cutting out the obvious "fast food " choice of burger & fries. I did allow myself fries once a week.
2) I cut out sugar based drinks. As I am a cola-holic this was hard. I had to switch to non-sugar sweetened drinks, and had to get used to the taste, which I found easier to accept in iced-tea and Dr. Pepper, than in Coke or Pepsi. After you are used to the different sweet taste you come to accept the soft drinks, or I did. (Also included in the sugar based drinks are fruit juices and those with alcohol. The body digests alcohol by converting it to sugar.)
3) I had an apple 1/2 hour before every meal, so that I got full quicker and didn't go back for thirds. I also used apples for snacking. There are so many different types of apples I found I never really got bored, I just switched types.
4) I added a moderate amount of extra exercise. I walked. Outdoors if it was good weather, mall walked if it wasn't.
Those four things cut 40 pounds off in 18 months. It isn't quick, but it worked, and it has generally stayed off. Oh I don't find I like french fries any more, they seem very greasy and salty now.
The biggest hint I can give is be patient, and don't take one day of backsliding as failure. But be patient, you didn't put it on overnight, so you aren't going to take it off overnight... not and keep it off.
Five years off the"diet" stage and I have put back 10 pounds, so it will be time to move back into a stricter regime for a while.
Good luck!
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