Sarah Michelle Gellar was too tired to perform a sex scene in her 2006 movie Southland Tales, because she had just feasted on turkey.

She plays a porn star in the movie, but was disappointed when she couldn’t partake in an intimate scene with full gusto, because all she wanted to do was sleep. The 30-year-old had binged on a huge Thanksgiving meal of turkey – which contains chemicals that make you lethargic – just before she was due to film the scene.

She tells Maxim magazine, “For a porn star, I didn’t get much action. I filmed a love scene on Thanksgiving, and I had eaten all this turkey and mashed potatoes and was like, ‘I seriously have to film a sex scene right now?’ “I was so tired from all the tryptophan (an amino acid in turkey that makes you sleepy) that I just wanted to sleep.”

WENN