What kept Kareena glowing throughout the pregnancy?

Kareena Kapoor has delivered a baby boy and the mother and son are said to be in pink of health. The baby boy has been named Taimur Ali Khan Pataudi. Whoosh! A long name indeed, but if you have a legacy to foolw then the name has to be long. A royal lineage matters. All throughout the pregnancy Kareena was active, defying all maternity leave concepts. She was working, partying, and getting photo shoots done. Like a true diva she was flaunting and making style statements. No other Bollywood actress has carried pregnancy in such a stylish way. Now what was the secret behind all these? How could Bebo keep herself so fit and glowing throughout her pregnancy?