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Claire Foy reveals she's been living with gut parasites
'The Crown's Claire Foy reveals having internal parasites

Claire Foy reveals she's been living with gut parasites

Feb 05, 2026
02:14 pm

What's the story

The Crown actor Claire Foy recently opened up about her health struggles on the Table Manners podcast. She revealed that she had been living with gut parasites for at least five years, which led to unexplained weight loss. The 41-year-old believes she contracted these "stomach parasites" during a trip to Morocco.

Health journey

Dietary changes to combat the infection

Foy described her experience with the parasites as "gross" and "disgusting." She said, "I kept losing weight and I didn't know what was going on. They travel as a pair... gross, absolutely rank." To combat the infection, she made significant dietary changes instead of resorting to "hardcore antibiotics." This included giving up caffeine, a tough decision for someone who used to have at least 15 cups of tea daily.

Autoimmune condition

Foy also doesn't eat gluten or sugar

In addition to her battle with parasites, Foy also has an autoimmune condition that requires her to restrict certain foods. She joked about it on the podcast, saying, "This is my big secret... I feel like I'm in The Traitors or something and I'm letting everyone know that I'm related to someone." "I don't actually eat gluten or sugar... except when I go out for dinner."

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Food habits

Why does she avoid gluten and sugar?

Foy clarified that she isn't allergic to gluten or sugar, but avoids them due to her autoimmune condition. "It doesn't have an impact on me. It's just because I have an autoimmune condition, so I should avoid anything which causes more inflammation," she explained.

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