A hungry child can quickly become a melting-down child. Being prepared can prevent a tantrum from ever starting. It is a good idea to keep packets of nuts, raisins, or casein- and gluten-free granola bars on hand, either in your bag or in your car, in case you need to feed your child on short notice.

In a pinch, you can also get gluten- and casein-free snacks easily when you're out and about. Many convenience stores carry bananas, applesauce cups, and even gluten- and casein-free cereal. In a jam, remember that most potato chips and tortilla chips are free of gluten and casein, as well.

Eating out can be a fun family experience. Some types of restaurants are easier to enjoy on the gluten- and casein-free diet than others. While pizzerias are limiting, Asian food, Mexican food, and Mediterranean food all lend themselves to many options that are consistent with the gluten-and casein-free diet.

Rice and corn are gluten-free, and stir-fried or grilled meats and vegetables are readily available. When enjoying Asian food, bring along a bottle of wheat-free soy sauce, and ask the restaurant to use that rather than gluten-containing soy sauce for your meal. As with friends and family, communication is the key to success when dining out.

There are resources to help steer you toward restaurants that are more friendly toward people who need to eat gluten-free. Celiac Handbook has a restaurant guide that is regularly updated. Another online resource is Gluten Free Restaurants. Since gluten-free is only one-half of the equation, it is also important to communicate with each restaurant you visit about all of your dietary limits, including the need for dairy-free options.