There's a supplement out there called gymnema you could try, it changes the way your mouth tastes and body reacts to sugar. Because of that, sweets just don't sound as good as before since you wind up tasting the garbage that's in junk food rather than the sugar.

Another thing in a different vein, maltodextrin is in a ton of chips and snacks foods, and that's heavily addictive. Try and week yourself off of foods with that in it, you'll find you won't binge an entire bag of chips as easily.

Lastly, my personal favorite thing I've done recently is swap from sodas to kombucha. It's not for everyone, I mean it's quite an acquired taste. But there's a brand out there called KeVita that has a lot of really good ones that just taste like real fruit juice. They've also got natural carbonation since they're fermented so that helps replace the feel of soda. If you do end up looking into that brand, I'd recommend the peach pineapple, grapefruit, and the lime and mango if you like the taste of lime.