Tiegs, 68, made it clear that she is unhappy with the rise of plus-size models.
"I don't like it that we're talking about full-figured women because we're glamorizing them, and your waist should be smaller than 35 [inches]," Tiegs said. "That's what Dr. Oz said and I'm sticking to it."
Tiegs claimed she was only concerned about Graham’s weight because of her health.
"I don't think it's healthy," Tiegs said. "Her face is beautiful, beautiful. But I don't think it's healthy in the long run."
Campbell swiftly disagreed