From the sounds of it, it sounds like a few words of advice may help the children somewhat; however, it sounds more like you need to do a serious overhaul of their diets. That can only be done with support from a medical doctor or nutritionist. Your children's pediatrician may be able to refer you if he/she cannot provide you with more guidance. In the meantime, here are a few things you might want to try: 1. Eliminate one "bad" food choice from the family groceries per month. (like doughnuts, chips, even white rice) When the kids ask for it, just say, "Oh, we don't buy that anymore." Offer no further explanation. Don't suggest something healthier either! If they insist on an explanation, just say, "It's my job to take care of you, and I've decided I don't want that in our house anymore." Slowly, bring in healthier choices such as brown rice, whole wheat crackers, whole wheat pasta. As for getting fruits and vegies in the diet: sneak them in!! Puree vegetables and if you don't want to, then buy jarred baby food (it's already pureed). You can sneak carrots (just a little) into mac and cheese. You can sneak pureed yellow squash into buttered noodles or soups. You can sneak pureed sweet potatoes into meatballs. I've even snuck pureed brocolli into the breading of homemade chicken nuggets or fried chicken. With fruit: blend fruit into fruit juice, freeze in ice trays -- instant desert popsicle that most kids will love. Another is to whip together frozen fruit such as strawberries, peaches, bananas with plain yogurt, apple or orange juice in a blender. Yummy smoothie. And finally, it sounds like they could use extra water in their diet. have ice cold water handy. There are a couple books on finding ways to sneak in vegies to kid's food. Ask at bookstore.