Claire Foy is sharing her "gross" experience with parasites after taking a trip abroad. The Crown actress, 41, revealed that she stopped drinking caffeine "quite a few years ago" because she "had parasites" during an appearance on the "Table Manners With Jessie and Lennie Ware" podcast on Tuesday, February 3. Hosts Jessie and Lennie Ware were curious about Foy's parasite discovery and whether she found out through a blood test or stool test. "Yeah, the gross stuff," Foy divulged before she was asked what kind of "issues" in particular she experienced with her stomach.