Some people claim that a low starch diet may benefit people with AS. The theory goes that some types of gut bacteria can trigger the condition, and starch feeds these bacteria.
The evidence supporting a low starch diet is anecdotal, meaning that although it may work for some people, NASS cannot endorse the diet due to a lack of solid research.
A person can talk with a healthcare professional if they want to try a low starch diet to help with their symptoms of AS.