Gastroesophageal reflux disease (GERD) primarily causes symptoms such as heartburn, regurgitation, and difficulty swallowing, but it can also affect saliva production and composition. White, foamy, or thick spit could potentially be related to GERD, especially if there is a buildup of mucus due to irritation of the esophagus or throat.
If you are consistently producing deep white spit or have concerns about changes in your saliva, it's important to discuss these symptoms with a healthcare professional. They can help determine whether it's related to GERD or if there might be another underlying cause that needs to be addressed.