Reality TV star Kim Kardashian has revealed her husband Kanye West's exteme diet and hopes his clean and healthy eating habits will help her to get pregnant again.

Kim says that the rapper has become obsessed with clean eating since hiring a personal chef and nutritionist.

The 34-year-old said: "Kanye loves to eat really healthy and is always on different diets. He has a chef who comes in the morning and cooks breakfast for both of us and gets our meal plans together for the day. We just started seeing a nutritionist who changes our diet every 10 days.

"I think after you have a baby, you want everything to be as pure as possible. I want to set an example and to be natural and healthy. It's a decision Kanye and I made, to see a nutritionist together. Also, I think anything could help if I'm trying to get pregnant," Kim told t Harper's BAZAAR magazine.

But the reality star admits that she still has a sweet tooth. She said: "If I need a sweet-tooth fix, I'll have those Justin's peanut butter packs; the almond butter is also really good. I'll just eat it plain. I used to drink a ton of iced tea, but I've cut back.`

"I don't really have cocktails or desserts - I mean, I wish! Haagen-Dazs is my biggest indulgence - their Dulce de Leche flavour is my favourite thing in life," she added.

For her own fitness, she plans all of her workouts around North's sleeping schedule.

"I used to work out at a gym more often, but now I stay at home because I want to be there when my daughter wakes up, which is around eight. It's my favourite time of the day with her, so I don't want to miss it," Kim said.

The mother-of-one also said they rarely get breaks when filming their show `Keeping Up With The Kardashian".

"We don't really get breaks because we have three crews and they switch to get their breaks. We break only if we eat, if we break at all,` she said.