In regards to websites promoting a message similar to "big is beautiful," please don't be confused that this means "obesity is wonderful!"
It's hard enough loving yourself in this world... But being a fat woman can make it so much harder. And you know what doesn't help fatties stop being fat (in a healthy way)?! Shaming them for being fat.
"Big is beautiful," is a fine message to send. It's not that you are beautiful only if you're big... But it's more that being big doesn't stop you from being beautiful... And it's a message bigger women need to believe in order to believe that they're worth good health. That they're worth the time, money and effort it will take the to lose weight. That they are not just disgusting pigs that may as well go crawl into a hole and rot because they're so vile and so lousy they'll never succeed at losing weight. Which, trust me, is how you can feel when you're fat.
Obesity is a problem... But it's not a problem in itself in most instances and it needs to be treated delicately. Saying, "hey fatty... Put down the burger and order a salad," helps nobody. Even the same message delivered sensitively could be counter productive. The person needs to believe they deserve health... And to make them believe that, they've got to believe they're worth more than they're currently giving themselves. That comes from themselves, sure, but it doesn't help to think, "you know,.. I may be fat, but I still look awesome in this outfit!" People that can feel good about themselves are more likely to look after themselves.
We also can't assume that our lessons in nutrition will be the difference between our kid growing up fat or skinny. Takeaway was a luxury in our house. We had it maybe twice yearly. Fruit was your snack. Dinner usually had lots of veges. I still got fat. Once I got access to my own money and the ability to travel without parents, I ate so much junk food. Part of me wonders if its because it was such a treat in my mind, that I wanted it.
As to food addiction and takeaway, a quarter pounder meal was definitely something I loved in my former life, but it was hardly the main reason I it fat. I would have several servings of something. I'd binge on anything I could get my hands on. I would go defrost some meat and cool it up and pig out on it. I'd make myself 5 sandwiches. It was more food at home than takeaway and more due to quantity than how healthy or unhealthy things were. Fast food was such a small part of it.