Nutritional Fuck

The act of purchasing a food product based upon the Nutritional Facts guide on the package, then later realizing the serving size has been scaled down to something a small insect would ingest.

You: "Heidi you just ate that whole bag of chips!"
Heidi: "It's okay, it only had 2 grams of fat."
You: "You just got Nutritional Fucked, that's per chip dummy!"