Slim rice and slim pasta - made from some weird kind of vegetable fibre supposedly eaten in Asia for centuries. I lived in Asia and travelled round there a lot and never saw it. Asians ate REAL RICE, and they generally do not have an obesity problem.
Weight watchers/slimming world meals and slim fast shakes - anything that promotes crash dieting and replaces real food with additives really.
My dad's whipping cream. There is no cream in there! Just crystallized cottonseed oil!