Over half of all Americans are living with a food allergy. Are you one of them?Elisabeth Hassleback and Dr. Oz explain how food allergies affect the body and why they are so hard to recognize.

View Part 1 of Elisabeth Hasselbeck’s Hidden Food Allergy.

Watch Elisabeth Hasselbeck reveal the top four hidden food allergies.

Could you have a hidden food allergy? Take this self-test.

You've heard of red wine and white wine but have you ever heard of blue wine? This blue version of wine is given a taste test to see how it compares to the classics.