"I don't like that we're talking about full-figured women because it's glamorizing them because your waist should be smaller than 35 [inches]. That's what Dr. Oz said, and I'm sticking to it," Tiegs told E! News in a new interview. "No, I don't think it's healthy."
But Tiegs, 68, did compliment Graham's looks.
"Her face is beautiful. Beautiful," she commented. "But I don't think it's healthy in the long run."
"I'm really excited to know that Sports Illustrated is wanting to include women like us," the size 14-16 model told ET exclusively. "There is no perfect body, and we shouldn't be striving for perfection anymore."
She has also talked about her health before, when ET spoke with the brunette beauty last August.
"The things that I don't necessarily like about it is all the negative stigmatisms that go with the word plus size -- you're fat, you're lazy, you have no drive, no determination, you're constantly eating," Graham told ET. "Honey, I work out. I work out three days a week. I lift. I do barre. I do it all. It's the stereotypes. That's what I really don't like. I am me. Take it or leave it."