Today is National Celiac Awareness Day, meant to raise awareness of the about three million Americans with celiac disease, and most — like Charlie, a paleontologist and 23andMe customer — spend years not ever being diagnosed.

A new study by researchers from Stanford Medical School and 23andMe is the first to identify genetic variants associated with rosacea, a chronic skin disease estimated to affect more than...

You learned to like the foods you grew up with, but did you know that genetics also play a role in your food preferences? In addition to influencing your sensitivity...

Editor’s note: This post has been altered to reflect 23andMe’s new product offering. By Amick B. Like other autoimmune diseases, celiac disease has a strong genetic component, but new research...

Congratulations to Monica P., the winner of our heritability quiz! Read on for the answers and to learn more about what we can say about nature vs. nurture.

By Bethann Hromatka Autoimmune diseases are caused by an overactive immune system. In these diseases, white blood cells, which normally help your body fight infections, ramp up and attack your...

Crohn's and Celiac are both autoimmune conditions localized to the digestive system, but they have many differences. For example, celiac disease is confined to the small intestine and is specifically a reaction to ingested gluten, while Crohn’s disease can occur anywhere in the digestive tract when an overactive immune system attacks “friendly” bacteria in the gut that normally help us to break down what we eat. Despite these differences, evidence suggests that the two diseases may share some of the same risk factors and underlying causes.

Like many other autoimmune diseases, type 1 diabetes and celiac disease, often cluster together in families. Studies show that the prevalence of celiac disease in people with type 1 diabetes is five to 10 times higher than in the general population.