5 Key Takeaways

• 1

  Lower diet quality is linked to reduced gamma-aminobutyric acid and increased glutamate in the medial prefrontal cortex.

• 2

  Decreased grey matter volume was observed in the right precentral gyrus among individuals with lower diet quality.

• 3

  The study examined the relationship between diet quality and brain changes related to common mental disorders and rumination.

• 4

  Thirty adults were classified into high and low diet quality groups for the study using proton magnetic resonance spectroscopy.

• 5

  A significant negative correlation was found between rumination and grey matter volume in the right precentral gyrus.