Kim Kardashian said eating real meat ahead of the Met Gala caused her psoriatic arthritis to flare so badly she couldn't move her hands

• Kim Kardashian said eating meat prior to the Met Gala worsened her psoriasis as well as her psoriatic athritis.
• Normally plant-based, Kardashian cut carbs and sugar to lose weight for the Gala.

Kim Kardashian said she switched from a plant-based diet to eating meat leading up to the Met Gala, and it led to a flare-up of her longtime skin condition and related arthritis, according to Allure.

Kardashian has long been open about having psoriasis, a common skin condition that causes red, scaly patches. Psoriatic arthritis is an autoimmune disease that affects some people who have psoriasis.

Kardashian was diagnosed in 2011, but has since told fans her condition has worsened.

Eating meat as part of her Met Gala diet exacerbated the problem, she said. She is normally a vegetarian. Kardashian is also chief taste consultant for plant-based protein brand Beyond Meat.

Kardashian told Allure she had breakouts all over her body as well as psoriatic arthritis so severe she had trouble moving her hands.

"It was really painful, and I had to go to a rheumatologist who put me on a steroid. I was freaking out. I cut out the meat again, and it's calmed down," she said.

Psoriasis flare-ups can be caused by stress, infection, certain medications, skin injury, cold weather, or anything else that may affect the immune system, according to Cleveland Clinic.

Kardashian's Met Gala diet, which she said helped her lose 16 pounds in three weeks, was controversial. The restriction and carb-cutting could be risky and isn't recommended for most people, dietitians previously told Insider.