Nigella is the daughter of a former chanceller of the exchequer in the UK, so she pretty much had a guaranteed head start as acombination of a healthy upbringing and good genes. She then married Charles Saatchi, co owner of the largest advertising company in the world at the time, and then started her own cookery show where she starred as host. She is often heavily made up.
McKeith on the other hand grew up on a Scottish council estate and was raised eating junk food, which prompted her to advocate for a more healthy lifestyle.
