"I've come a long way," he says. "I was 280 pounds, and I got down to 260 a couple of weeks before the UT (senior) camp. Now I'm 238."
Since reshaping his body, Buchanan is drawing interest from several Southeastern Conference schools.
Buchanan made an unofficial visit to Tennessee several months ago and "loved it." Then he attended the Vols' Senior Camp in June and enjoyed that, as well.
"I liked the one-on-one time with the tight ends coach (Matt Luke)," Buchanan recalls. "He was all hyped up … like we were going to go play a game at Neyland Stadium right then."
Buchanan's favorite part of the visit, however, came when the campers got to watch film in the meeting room, much as Tennessee's players do during game-week preparations.
"When they acted like you were a UT player, that was great," he says. "You got to go into the meeting room and watch film like a regular UT player."
Buchanan describes himself as "a blue-collar guy," adding: "I'll do anything to win. And I make big plays. I'm a person who wants the ball when the game's on the line."
He says he caught "20-plus" passes as a junior last fall and scored three touchdowns. The longest came on a 40-yard play-action pass. Buchanan also played defensive end, helping Antioch High to a 7-4 record and a berth in the TSSAA playoffs.
"We lost in the first round by three points," he recalls wistfully. "That was tough."
Although Buchanan spent some time in defensive end drills during his Tennessee visit, he is really hoping to play tight end in college. Asked what he likes best about tight end, he answers without hesitation:
"Everything. You're a big man for one thing, and you get a chance to do what all big men want to do – get the ball in your hand and make a big play. If it's a run, making a big block. If it's a pass, making a big catch."