Ariana Grande Reveals What Made Her So Sick She Postponed Concerts: A Tomato Allergy

When Ariana Grande announced yesterday that she was "beyond devastated" to have to postpone her tour dates in Tampa and Orlando, she didn't initially specify what sidelined her. But now we know the medical condition behind the change in plans.

Grande took to her social media to explain that the cause was a severe allergic reaction to food. "Update: we discovered.....that.....I had an unfortunate allergic reaction to tomatoes and my throat pretty much closed," she shared on Instagram. "Still feels like I'm swallowing a cactus but slowly making progress! Thank u all for your love and understanding."

She added, "can't wait to get back to performing and to make it up to Tampa and Orlando in November. P.S. There is NOTHING MORE UNFAIR THAN AN ITALIAN WOMAN DEVELOPING AN ALLERGY TO TOMATOES IN HER MID TWENTIES......."

When she announced the postponements, she evidently didn't know what had made her so sick. "i woke up incredibly sick today, ran to my doctor here and have been told to postpone these shows tonight and tomorrow," she said at the time. "i'm so beyond devastated."

She continued, "i will make this up to you, i promise. please forgive me. i love you and i will be back and better than ever as soon as possible. love you."

Indeed, food allergies can be severe enough to cause serious illness — and even death: Kris Jenner recently revealed grandson Mason was rushed to the hospital after an allergic reaction to peanut butter. And Bethenny Frankel narrowly survived an allergic reaction to fish, after eating soup that contained traces of it.