This is the TurnOff Conditioner, currently in beta. This web app basically aims to train you to be disgusted by the sight of something you want to avoid: for example, at this point it has built in images for lollies and chocolate, and smoking.
It shows a sequence of inoffensive images. About one in five times, there is a picture of the object we're trying to induce the disgust response in, and then a disgusting picture. The idea is that we train a Pavlovian response of disgust to the unhealthy food.
This is obviously NSFW, by definition.