Will my bad habits lose friends for my kids ?

Today after pick up we stayed at the park so the girls could run around and play on this beautiful day. Plenty of other moms did the same so the chats started. Most have older kids who are in the public school and the big talk was lice and swine flu and how it as all going around and half the kids are out of school. The talk then turned to vitamins we need to be giving our kids to stay healthy, extra D, extra C, some D is coming in a dropper, where you can get it. My head was spinning. Then some one added that if your kids don't eat red meat you really need to give them iron. 

One of the moms was a vegetarian and so are her kids so she was saying she was screwed, one thing lead to another and Mcdonalds came up and she almost vomited just talking about it, I offered up the fact that I pretty much eat there 5 times a week. 

Her reaction was quite strong, she was SHOCKED. Now of course I am going to look at the positive and I am going to believe that the reason she was shocked is b/c I am in SHAPE, and she associates mcdees hounds with overweight. 

More importantly I left the playground wondering if her little veggie daughter was no longer able to play with my mcdees eating child ????? 

Just another reason to quit the fast food, I might be ruining my kids' social life.