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Ariana Grande -

In May 2019, the singer postponed several tour dates due to an allergic reaction to tomatoes. Her throat "pretty much closed up" and she said it felt like "swallowing a cactus." In 2012, she had also found out that she's allergic to bananas.

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Zooey Deschanel -

The 'New Girl' actress is allergic to dairy, eggs, and wheat. "I am the worst person to ever eat with," she told Vulture in 2011.

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Mark Wahlberg -

The actor posted a photo of his inflamed allergy scratch test and wrote, "It only took 49 years to realize I'm allergic to almost everything."

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Serena Williams -

The tennis champion is allergic to peanuts and wheat, according to an interview with Fitness magazine.

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Drew Barrymore -

The actress is allergic to coffee and garlic. She told the Houston Chronicle that eating "can be a major pain" for her.

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Jessica Alba - The actress has one of the more peculiar allergies: hairstyling products. She told  The Cut that she had to go to the emergency room, she was put on antibiotics, and her vision was impaired for almost a week. Her doctor suspected it could be several ingredients in her hair products.

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Miley Cyrus -

After being criticized in April 2012 for looking especially thin, the singer fired back. "For everyone calling me anorexic, I have a gluten and lactose allergy," she tweeted. "It's not about weight it's about health. Gluten is crapppp anyway!"

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Bill Hader - While filming 'The Skeleton Twins' in 2013, Bill Hader had a severe allergic reaction after eating a piece of chocolate with peanuts in it. In an interview with Conan O'Brien, he said a member of the production team told him there were no peanuts in it, not realizing that peanut butter was equally as bad.

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SZA - The singer posted a long list of foods on Twitter that she's allergic to, including berries, beans, beef, dairy, eggs, shellfish, mushrooms, olives, and more.

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Kate Beckinsale - The actress told Delish in 2018 that she had to stop adding coconut oil into her tea because she became allergic to it.

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Malia Obama -

When President Barack Obama signed a 2013 bill to increase the availability of epinephrine in schools, he referred to his daughter's peanut allergy. "Making sure that EpiPens are available in case of emergency in schools is something that every parent can understand," he said.

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Jessica Simpson - After experiencing internal bleeding in 2006, Simpson discovered she's allergic to cheese, wheat, tomatoes, hot peppers, coffee, corn, and chocolate!

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Kelis - Don't expect any nuts in the milkshake that brings all the boys to the yard, as Kelis is highly allergic to peanuts.

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Nicole Kidman -

The actress told Parade in 2013 that she is allergic to strawberries.

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Joshua Jackson - The 'Fringe' and 'Dawson's Creek' actor was rushed to the hospital after suffering a serious allergic reaction to peanuts in 2011.

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Ray Romano -

Back in 2001, the actor and comedian was rushed to the UCLA hospital after eating a snack that had peanuts in it.

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Kim Kardashian -

Kim K found out about her allergies on her TV show, when she visited a Florida allergy clinic and discovered she's allergic to cats, forcing her to give up her teacup Persian kitten, which was a gift from then-boyfriend Kanye West.

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Kerry Washington - The actress didn't specify what she's allergic to, but she has said that she carries an EpiPen with her everywhere she goes because she has a lot of potentially severe food allergies.

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Kelly Clarkson - The singer tweeted in 2013 that she's allergic to "a lot of stuff," including peanuts.

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Billy Bob Thornton - Billy Bob Thornton told AARP that since he's allergic to dairy and wheat, he sees himself as "a vegan who cheats."

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Halle Berry -

The actress won't be enjoying a shrimp cocktail anytime soon, as she reportedly has a shellfish allergy.

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Eva Longoria - The actress has always been allergic to perfume, falling into a fit of sneezing around it, and she said that her allergy was one of the reasons she created her own fragrance in 2009 that wouldn't aggravate her.

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Demi Lovato - The singer told BuzzFeed that they're allergic to cats and dogs, but especially cats. "If I am 10 feet away from them, I'll be freaking out," they said.

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Steve Martin -

The actor and comedian joins the list of a surprisingly high number of people who are allergic to shellfish.

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Debra Messing -

The 'Will & Grace' star told Good Housekeeping that she grew up near the woods, surrounded by grass, flowers, pollen, and mold. She was sick all the time but no one knew it was allergies, so they were giving her antibiotics.

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Clay Aiken -

In addition to being allergic to tree nuts and mushrooms, the 'American Idol' alum told Rolling Stone in 2003 that chocolate, coffee, and mint cause him "gastric spasms like I'm giving birth out of my chest."

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Nina Dobrev - The actress had to go to the ER in November 2019 due to a strong allergic reaction, according to Us Weekly. She was casual about it on Instagram, explaining that it's happened a few times because she has a lot of allergies.

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Margot Robbie -

The actress revealed a strange food allergy that interfered with her work on the set of 'Birds of Prey,' where she was meant to eat many egg sandwiches. She's allergic to chicken egg whites specifically, which give her migraines, so the sandwiches had to be made with duck eggs.

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Bethenny Frankel -

The TV personality opened up about a scary incident in 2018 when she ate soup containing hidden fish and quickly fell unconscious for 15 minutes, ending up in the ER. "I'll never not carry an EpiPen," she said.

See also: Stars who suffer from rare diseases.

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