OK, this is a pretty oversimplified depiction of the relationship between corporate interests, farmers, and consumers — but that means it’s a good starting point for anyone who isn’t sure how subsidies for corn and soy led to a food system where processed crap is not only common but, for many people, inescapable. And it takes less than four minutes to watch!

The Biggest Loser framing doesn’t really work for me, though that may be because I don’t watch the show and there are some inside jokes I don’t get. (I assume? Because I’m definitely missing something — why is that lady with the tennis racket weeping openly?) But you can just ignore that part. It’s still worth showing to your friends who need a quick, simple primer on how this stuff interrelates and why you care.

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