Weight loss expert – Rujuta Diwekar, nutritionist to celebrities such as Kareena Kapoor Khan (she helped her turn ‘size zero’ for Tashan, 2008), Alia Bhatt and Varun Dhawan, Diwekar was one of the first Indian bloggers on the scene. She started Rujuta’s Gyan (rujutadiwekar.blogspot.in) in 2008, and wrote about her take on health, dieting and…