Kareena Kapoor has turned writer for her dietician Rujuta Diwekar! Confused? Well Bebo has written a foreword in Rujuta Diwekar's bestselling book, Don't Lose Your Mind, Lose Your Weight and in that she has herself revealed her breakfast secrets that lead to her size zero figure.

"Rujuta has changed my perception towards diets and dieting. She has taught me to eat well, eat right and eat regularly. I started working with her around the time I started work on Tashan. The results are for all to see.

My size zero became a topic of national interest. The media asked me if it was diet or exercise. It was a combination of both; 70% diet and 30% exercise-training and yoga, " writes Kareena in her foreword.

"Rujuta understands my work and lifestyle and has given me a diet totally customised to my needs. My diet on work days is different from my diet on shoot days. It even on varies on shoot days, like it is different if I have to dance or perform. The meal is planned according to my level of activity."

"In Mumbai, my breakfast is muesli and milk or a chillah or parathas; no chai or coffee. While shooting for Tashan in Ladakh. I ate fresh fruit for breakfast and thukpas and momos for my other meals. I had pudina tea without milk.

On the last day, I was allowed pizza as well. In Kerala, I had idlis and appams. In Italy it was risotto and pasta with gorgonzola; half portions though, not full."

"I make sure I eat every two hours. My evening snack or meal is soy milk or a sandwich. Rujuta focuses on nutrition, not calories. Amazingly, she likes to keep the nutritional value of what you eat, as compared to the calories consumed, high.

I have learnt what she means when she says, "be smart about food" and still enjoy what you eat. Now thanks to this book, you can (learn) too and I am sure you will find it good enough to eat, " signs off the svelte and gorgeous superstar.

Rujuta Diwekar's book Don't Lose Your Mind, Lose Your Weight is presently selling like hot cakes and is available at bookstores.