What doctors wish patients knew about the impact of caffeine

Try small, frequent doses  “One of the things that people don't realize is, if you think of it as a medicine, then the best way to use it is in small, frequent doses,” said Dr. Kilgore. “So, 20 milligrams to 100 milligrams at a time as opposed to the standard American mug of coffee.

Caffeine can be part of a healthy diet for most people, but too much may pose a danger to your health. Four physicians share what to keep in mind.