This video discusses how to determine if you have improved your bile flow. The speaker explains that while there's no single definitive test, several signs and symptoms can indicate positive changes. These include improvements in stool color and consistency, saliva pH, reduction in nausea, clearer skin, less gallbladder pain, and changes in blood pressure. The video also mentions using urinalysis dipsticks to detect bilirubin and urobilinogen as potential indicators of significant bile flow issues.