"I'm riveted," the Friends alum, 46, said after she was asked about it during an interview.
"I can see that being something."
In the new book "The Taco Cleanse: The Tortilla-Based Diet Proven to Change Your Life", the authors claim that they lost weight after eating nothing but tacos for 30 days in a row.
Aniston, 46, started googling the diet during her interview and admitted she had her doubts - and, well, rightly so.
"Isn't the corn tortilla, like, not that good for you?" she mused.