Steroids. Whenever insert Hollywood celebrity here is asked how he managed to gain 40lbs of muscle in 4 months, he'll always say that it was a lot of "Chicken rice & broccoli."
See also: dat dere celltech
"Bro what are you talking about? Of course Chris Hemsworth is natural. He said it on the Tonight Show, it was just 6 months of chicken rice & broccoli."
The broccoli test is a test of whether your significant other is in tune with you. If you and your SO are at opposite ends of the produce department at a grocery store, and you decide that you want broccoli, you should be able to communicate that to your SO without yelling across the store.
Henry and Loretta would pass the broccoli test easily: they alwaysknow what the other is thinking.