Dr. Oz tackles the entire alphabet of disease prevention. Uncover how abdominal bloating, bladder issues and changes in sense of smell could be warning signs. Learn how to decode your body's messages. 

Click here for Part 2 of Warning Signs from A to Z.

Click here to read more about the Alzheimer’s smell test.

Click here to see the full Dr. Oz Alphabet.

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.