Does JK Rowling's Severus Snape Have Celiac Disease?

A Theory on Just What's Wrong with the Most Mysterious Character of the Harry Potter Series

Harry Potter fans have long theorized about just why JK Rowling’s most ambiguous character, Severus Snape, is so mean and ugly, other than the fact that JK Rowling knows exactly what a children’s book villain should be. Fan theories on Severus Snape have included everything from the mere fact he works with potions all day to liver disease to an assortment of random magical ailments and curses. Personally, I think JK Rowling’s Snape is suffering from unmanaged celiac disease. Celiac disease can be used to explain every negative train Severus Snape is described as having, except for, of course, the hooked nose.

Let’s look at quotes from several of the Harry Potter books against celiac disease symptoms:

In Harry Potter and the Philosopher’s Stone, Chapter 7, JK Rowling introduces Severus Snape to us as "a professor with greasy black hair, a hooked nose, and sallow skin.”

While celiac disease can't explain the nose, celiac disease symptoms do include chronic hepatitis and, if left untreated primary biliary cirrhosis, both of which would cover the sallow skin.

Those with celiac disease also have a difficult time processing fats, especially when continuing to consume gluten. Many with celiac disease report that their skin and hair become less greasy after going on a gluten-free diet.

In Harry Poter and the Philsopher’s Stone, Chapter 14, JK Rowling adds to her description of Severus Snape and refers to his "uneven, yellow-ish teeth."

Dental discoloration is a celiac disease symptom predominantly in those who have had celiac since childhood, something I’ll argue for in the case of Snape in the next set of quotes. This celiac disease symptom I can also confirm from my own personal experience as well as that of many people on the celiac disease community on LiveJournal.

In Harry Potter and the Order of the Phoenix, Chapter 28, JK Rowling gives us a look at the young Severus Snape and says, "Snape-the-teenager had a stringy, pallid look about him, like a plant kept in the dark."