You got 7 out of 16!

For such a basic human need, eating and food itself can be pretty confusing. Grocery stores are crowded with nutritional jargon — think: organic, vegan, enriched, local and GMO-free — and it's hard to differentiate a legitimate health claim from what's merely a smart bit of marketing.

So how well do you know what you are eating? Take this quiz and assess your knowledge about the science and chemistry of food. You might be surprised about a few of these.