The 30-year-old beauty - who is famed for her curvy figure - recently moved from Los Angeles to the Big Apple for her new reality TV show with sister Kourtney, `Kourtney and Kim Take New York`, but says her healthy eating plan has been ignored and has over-indulged pizzas and hot dogs.
She said: "The hardest thing about moving from California to New York is the food - it`s everywhere. I have got to know the pizza there really well. I have probably gained 10lbs living in New York. I can`t find a gym I just see pizza and hotdogs everywhere."
Before relocating to New York, Kim lost some weight but has previously revealed she was happy she managed to keep her famous curves.
She said: "Slimming down gave me confidence and I`m much happier with my body now.
"Being thinner makes me feel better about myself, but my curves are still here which I love. I`d never get rid of them even if I could."
Kim also said she is careful about her weight but insists she won`t fall into a trap of yo-yo dieting.
She said: "I`m pretty consistent right now and I hope to stay that way. I`m always really careful too. When I start to see myself gain a few pounds and get heavier, I work my butt off to get back in shape.
"Everyone goes up and down a bit but I`m happy with how I am right now and I hope that doesn`t change."