Despite his admitted difficulty in cutting down to 155 pounds, UFC lightweight champion Ben Henderson says there's no way he'll go up to welterweight.

Henderson debunked talks of an upcoming shift in weight class via his Twitter account, answering a fan who asked him about the rumor directly:

0% chance of that...RT @chrisreed2333:@BensonHenderson any truth to rumors your considering a move to welterweight

In recent interviews with Arizona Local News and Bloody Elbow, both Henderson and head coach John Crouch have regularly stated that the champion walks around at 175 pounds—just five pounds north of the cutting limit for welterweights.

Henderson also spoke to MMA Junkie about the difficulty in maintaining his diet now that he's older, claiming that he used to eat Taco Bell while wrestling in college:

"I'm growing, but as far as maturing and getting thicker, I think I'm getting older right now, and it's getting harder for me to lose the weight … and it's harder for me to keep the weight off," he said. "All these desserts aren't helping."

Henderson, now 28 years old, has never missed weight for a fight in the UFC or WEC. He once fought in a 160-pound catchweight bout earlier in his career, which also resulted in one of his only two losses against journeyman fighter Rocky Johnson at a regional Colorado event in 2007.

Riding a perfect 5-0 UFC record with two championship victories against Frankie Edgar, Henderson will make his second title defense against Nate Diaz on Dec. 8 at UFC on Fox 5.