First - stop the mindset of "diet food"
Agreed! The best way to sabotage a diet before it starts is to think of it as a diet. Make it less about deprivation and more about learning new habits. Weight Watchers, Jenny Craig, the Atkins Diet, none of that will do anyone any good until they learn that losing weight is about changing your relationship with food. Sure, you will lose weight on Weight Watchers or the Atkins Diet but once that weight is lost, if you go back to your original way of eating, you are back at square one.
Pretty much anything can be diet food. Anything from pizza to cookies, fried foods and french fries. As long as you exercise regularly and eat in moderation, you can eat anything you want and still lose weight. I've done it. I lost a lot of weight a few years back and I still ate all my favorite foods (pizza, chocolate cake, fried chicken, french fries with dressing and gravy, baked ziti, Guinness-battered fried fish and Guinness brownies) and lost the weight. I exercised at least 30 minutes every day and watched my portions. I didn't see "diet" on something and think "Oh, ok, fewer calories, less fat so I can eat twice as much!". I kept the weight off until I had some pretty serious health issues and the medication I had to go on thought it would be a cute side-effect to cause weight gain. That was disappointing but it couldn't be helped. I got there once before, I can do it again!
Have no diet foods at all. I heard diet sodas are worse than regular.
I definitely agree with this. I've read numerous articles about diet sodas being worse than the regular. Diet soda can actually cause weight gain instead of loss, can cause headaches and isn't good for the heart. To be honest, I can't tolerate the flavor of diet sodas. The flavor makes me nauseous. I dearly love Coca Cola but I wouldn't touch the diet version for love nor money. I like to buy Mexican Coca Cola since it is made with real sugar instead of the high fructose corn syrup. Tastes so much better!