Do obese parents have obese children?

[happyhols]

I have just read a letter in response to a story about someone not being allowed to adopt as they were obese. The writer of the letter was initially outraged but than commented that obese parents have unhealthy diets etc and therefore have obese children.
I was outraged by this as I am very obese but working on it and dh is obese too. Yet our dc eat healithy and are the right weight for their age etc.

What do people think?

Well, I remember reading a riposte to the "its our genes fault rather than our diet's fault" argument, in which it was pointed out that obese families often have obese pets!