How can I persuade my husband that our daughter is getting fat?

Maybe you should go see a doctor and have him help out. The docotor will tell or help you guys with a meal plan for your daughter. I would ask your husband to respect your wishes for your daughter & lets just try it out & if he doesn't like the results of it, it can always go back his way. Another good thing about the doctor is you can get a bmi done. Body mass index, they will take her height & weight it will tell you how close she is to being over weight , normal weight, & under weight. Also you could start fixing her meals and talking to her about it. I hope I helped :)