Tyra Banks Tyra Banks after her "lifestyle change"Tyra Banks isn't into dieting - so how has she lost 30lbs?

The former supermodel reckons diets are a "bunch of bologna".

The 35-year-old says a "lifestyle change" is responsible for her new skinny frame.

Tyra previously told critics of her weight gain to kiss her "fat ass", but now she has lost a hefty amount of weight and says she is in the best shape ever.

But how?

"I do not believe in diets. I have been on diets in the past, and they are a bunch of bologna," she said on The Tyra Show.

"This is a lifestyle change. It's not about being skinny. It's about getting in the best shape that you can be."

The 5'9'' presenter has been working with a nutritionist who helped her re-evaluate her eating habits by keeping a food diary.

Tyra added: "I switched up my unhealthy eating habits for healthier eating habits, and I haven't had a tummy attack since December '08."

However, she believes she hasn't got too thin: "I feel good about my curves and my imperfections - my booty, my boobs, my thighs - I embrace it all," she says. "Now I really can say kiss my fit - and still fat - ass."

Peruse Tyra's chequered BODY HISTORY.