Dr. Mojtaba S Olyaee M.D.

A dark stool refers to a stool that is either black or dark red in color. You may pass dark bowel movements after consuming dark-colored foods or when an injury or bleeding is present in your gastrointestinal tract. If you pass dark or bloody stools, see your doctor immediately to rule out serious...

Does a gluten-free diet expose people to higher risk for dangerous and excessive inorganic arsenic? There has been a serious warning on arsenic in rice. Well, this topic can be confusing and complicated. However, there is no point in panicking over it. Understanding arsenic in gluten-free diets and...

What is Linzess?Linzess is a medication used to relieve symptoms of irritable bowel syndrome with constipation (IBS‑C) and for the treatment of chronic idiopathic constipation (CIC) or chronic constipation of unknown cause. This medication works in the intestines to help reduce pain and...

Irritable bowel syndrome (IBS) is a common medical condition that is found in a large number of people. Although this condition is very common in older adults, it is also likely to affect people in younger age groups. Irritable bowel syndrome as a medical condition is known to impact as many as 25...

Gastroenteritis (also called gastro) is a common condition. According to statistics, 1 in every 5 people in the United Kingdom will develop gastroenteritis every year. However, most people will experience mild gastroenteritis that does not need medical attention. Nevertheless, most people who have...

Celiac disease is an autoimmune disease that is characterized by the body’s immune system attacking the digestive tract. In celiac disease, the immune system assaults and destroys the villi of the small intestine. When these villi are damaged, the intestines can no longer absorb nutrients...