Researchers examined six different studies to see if taking probiotics helps people. They focused on mouth health, saliva quality, and how the gut feels. The goal was to find out if these friendly bacteria make a real difference for patients.
The studies found that people taking probiotics had better saliva buffering and lower plaque acidity. This means their mouths might be less likely to get cavities. Also, levels of Streptococcus mutans, a germ that causes tooth decay, went down in those who took the supplements.
Gut health also seemed to improve. People reported fewer stomach problems and better overall digestive feelings. However, the studies were not all exactly the same, which makes it hard to be sure about the results.
Experts say the evidence points to good effects, but more careful research is needed. The mix of different study methods lowers confidence in the final conclusions. Patients should talk to their doctors before starting new supplements.