Foods that trigger acid reflux, how to prevent it and when to consult a doctor

An estimated 20% of Americans suffer from GERD, a chronic form of acid reflux that goes beyond occasional heartburn.

GERD, or gastroesophageal reflux disease, can be more common among older people, those who are obese, and pregnant women, according to the American College of Gastroenterology.

When should symptoms raise concern? CBS News chief medical correspondent Dr. Jon LaPook broke down what to know about serious acid reflux on "CBS Mornings Plus" Tuesday.