Probiotics in Functional Dyspepsia

The goal of this clinical trial is to learn whether a multi-strain probiotic can reduce digestive symptoms and improve quality of life in adults with functional dyspepsia. The main questions it aims to answer are: * Does the probiotic reduce symptoms such as fullness after meals, bloating, stomach discomfort, and early satiation? * Does the probiotic improve emotional well-being, including stress, anxiety, and mood? Researchers will compare the probiotic to a placebo (a look-alike capsule with no active ingredients) to see if the probiotic truly helps adults with functional dyspepsia. Participants will: * Take one capsule of the probiotic or placebo once daily before meals for 60 days * Complete questionnaires about their digestive symptoms at the start, 1 month, and 2 months * Complete surveys on stress, anxiety, depression, and quality of life at the start and 2 months * Attend scheduled study visits for checkups and assessments