Kourtney Kardashian has "noticed a change" in her children after she cut gluten and dairy from their diet.

She shared: "I have noticed a great positive change in behavior with my children. Of course, we pick our battles and I do let the kids have popcorn at the movies and a churro at Disneyland, etc. But for birthday parties, which can sometimes be every weekend, I bring extra gluten and dairy-free cupcakes ... and they are happy with that."

The 37-year-old television personality's only daughter Penelope is a huge fan of salads so the family try to weave it into their daily meals as much as possible.

She added: "For lunch, we usually have carrots and celery with hummus and a gluten-free rice tortilla with sliced turkey meat or turkey dogs - no bun. Penelope and I love salads, so we usually eat a big yummy one for lunch."

However, Kourtney does let her children have the odd food which contains gluten or dairy.

Writing in a post on her app, she said: "When we were just in Italy, we all had pizza one night. But for the rest of the trip, I found that almost every restaurant had gluten-free pastas and gluten-free bread. We also had ice cream one evening, but almost every other night, we had lemon sorbet for dessert."