David Kerr discusses a new 'umbrella review' of vitamin D studies from across the medical literature, and the potential implications for the prevention of colon cancer.

Dr. Roger Steinert shares a story told by Nobel laureate Dr. Barry Marshall, whose great discovery of Helicobacter pylori as the cause of peptic ulcer disease was difficult to swallow.

Dr. Eric Topol talks with CEO of 23andMe Anne Wojcicki about how her company is challenging the status quo in healthcare.

Dr. David Johnson summarizes the practice-changing highlights from this year's Digestive Disease Week (DDW) meeting.

Exocrine pancreatic insufficiency can be a missed diagnosis. To raise awareness and better direct and optimize patient care, Dr. David Johnson discusses its clinical aspects and treatment strategies.

Negative HCV RNA in a man with mixed cryoglobulinemia -- crack the case.

Dr. John Bartlett provides the highlights from his recent presentation at ACP Internal Medicine 2014.

As the obesity epidemic rages on, bariatric surgery is being performed in younger and younger patients. Three experts discuss the pros and cons.

The Code of Medical Ethics promulgated by the American Medical Association is the underpinning for ethical physician behavior. Are you an adherent?

Is vitamin B12 deficiency more common in patients taking proton pump inhibitors or histamine type-2 receptor blockers?