Dr. David F Altman M.D.

Vitamin D, also known as the ‘sunshine vitamin’, is an important nutrient that the human body needs in order to maintain a healthy life – both physically and mentally. Vitamin D serves numerous vital bodily functions, including supporting the immune system, improving muscle function,...

Celiac disease is a lifelong condition that can radically alter someone's way of life, prompting him or her to switch to different eating habits, adopting a more active lifestyle, and adopting healthier measures, in general. Those who are struggling with the disease must make regular visits to their...

Anemia, also spelled anaemia, is usually expounded as a disorder causing a decrease in the total amount of red blood cells (RBCs) or hemoglobin in the blood. This decrease in RBC count in the body hinders the oxygen to flow smoothly in the system causing various irregular symptoms which may...

Silent reflux, or laryngopharyngeal reflux, is similar to gastroesophageal reflux disease (GERD), however, it lacks the characteristic symptoms of GERD. Both conditions are caused by contents from the stomach moving backward into the esophagus. As the typical symptoms of gastric reflux are lacking...

Diabetes is a chronic metabolic disease that can affect just about any organ. It damages small and large blood vessels, nerves, and changes the functioning of various organs, including those in the gastrointestinal tract.Diabetes adversely affects the functioning of the complete digestive tract,...

Introduction Discovering blood after a bowel movement can be a frightening experience. If you notice a bright red to black-colored blood in your stool, in the toilet bowl, or on the toilet paper, you may be experiencing rectal bleeding. Having blood in your stool does not always signal a serious...