See, Shaheen -- a tight end from Division II Ashland University -- went on record at the NFL combine crediting Chipotle's food for helping him gain about 80 pounds since the end of high school.
Shaheen, who formerly weighed 195 pounds, was listed on the Bears' official roster as 6-foot-6, 277 pounds -- a remarkable transformation courtesy of hard-work, dedication, and lots and lots of chicken burritos.
True to form, Shaheen visited Chipotle each night after workouts ended.
"I do have a go-to order," Shaheen said. "I get a burrito (not a burrito bowl) and then I get extra, extra white rice. And then double chicken, which you've got to tell them one scoop of chicken, because they'll try to mix it in and you won’t get as much. Then just a little bit of corn. Then that’s it."
Wait, no sour cream or cheese?
"Nope. Nope," Shaheen said.
Shaheen's methods have worked so far. The first-year tight end was impossible to miss at minicamp, mainly because of his size. Shaheen lit up Division II, catching a school record 16 touchdowns last season. In 2015, he had 70 receptions for 803 yards and 10 touchdowns -- monster numbers (albeit at a much lower level of competition) for a tight end that size.
Whether Shaheen successfully makes the jump to the NFL remains to be seen, but fellow rookie quarterback Mitchell Trubisky -- Shaheen's roommate at camp -- is already a big fan.
"Adam's gonna be a great player," Trubisky said. "It’s really cool to throw to him. You can tell he loves being out here as well. I’ve never thrown to a guy that big. He has huge range to catch the ball, so it makes it a lot easier for me."
Bears offensive coordinator Dowell Loggains is equally as intrigued.
"I really want to get a good feel for what he is and what he can do," Loggains said. "I am excited about our tight end group. The addition of Dion Sims, he’s been awesome this offseason. Getting Zach Miller back and Daniel Brown and Ben Braunecker and now Adam and adding those different pieces, we need to figure out what each guy can do and then put them in those situations to do that."