Immediately, things like bread, cakes, cookies, pies may then come to mind.
But how about soups, baked beans and beer? Yes, these can contain gluten also.
I am afraid it is a little more complicated than just eliminating baked goods.
It is necessary to check all food labels for suspect ingredients. It is not just flour you need to watch out for. Manufacturers don't always make it easy to tell if their products are safe for you to eat.
So let's look at two lists of foods containing gluten. The foods in the first list are off limits because they contain wheat, rye or barley flour.
The blue links in the list below, will take you to safe, gluten free recipes for these items.
Not all foods containing gluten will list it as such in the ingredients. You will also need to watch out for gluten in disguise! It is a sneaky enemy.
You might find some surprises in this next list, for example consider the following...
I have put an asterisk beside oatmeal. For more information check out my are oats gluten free page.
Beer (and lager)
Brown rice syrup
Hydrolyzed Vegetable Protein (HVP)
Imitation crab meat
Seitan (pure gluten!)
Self basting turkeys
Soups (tinned and packet)
Some spice blends
So how can you avoid foods containing gluten? There are two main options here. You can either cut them out of your diet altogether, or you can find replacements. The site is full of recipes that use gluten free flours to recreate the foods you love.
Also, don't forget that the list of gluten free foods is longer than the ones on this page.