Recent years have seen a surge in psychiatric diseases, which has resulted in considerable disease
distress and considerably decreased living conditions. Many considerable synthetic medications have
been used to treat these illnesses throughout the years, but they have been found to have limited
effects and substantial recurrence risks in many individuals. Mental illnesses such as depression
and anxiety are persistently on the rise around the world, posing serious challenges to the affected
person’s and their family members’ personal lives. There is mounting evidence that suggests the gut–
brain axis (GBA) contributes to the genesis and development of psychiatric diseases. This review
focuses on contemporary dietary therapies such as Mediterranean diets and dietary supplements
and emphasizes nutrition’s critical role in psychiatric care through the GBA. Several research have
indicated that dietary quality affects mental health because it controls metabolic processes, has
anti‑inflammatory and antiapoptotic characteristics, and promotes neurogenesis and synaptogenesis.
This study demonstrates many dietary components, their relationships to depression, and how they
work. The use of dietary recommendations to support mental health appears to be a novel, affordable,
useful, nonpharmacological intervention for people with mental problems.