First of all, here is the list of main whole grains and sudo grains (Carbs high in sugar that raise the insulin in your body) that I have taken out of my diet. Wheat, barley, millet, rye, corn, malt, oats, quinoa, buckwheat, and rice. Sudo grains are white potatoes and some legumes. Again I want to stress this is only temporary and after a period of time I will be introducing gluten free grains back into my diet. Probably one per week.
Second thing is that you will feel some cravings and maybe be irritable or experience headaches. If you decide to do this remember you must eat more fruits and vegetables to make up for the loss of fiber and carbohydrates. There are many great recipes for grain free eating, just goggle grain free eating and a whole new world will open to you.