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Dietary intervention in depression - a review.

Tao Wu1, Ran Liu1, Ling Zhang1

  • 1State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China. wutaoxx@gmail.com.

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Dietary nutrition impacts depression by influencing key biological pathways. Specific nutrients and probiotics show promise as safer, effective depression treatments, offering insights for developing antidepressant foods.

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Area of Science:

  • Nutritional Psychiatry
  • Neuroscience
  • Mental Health Research

Background:

  • Depression affects over 300 million globally, with 30-40% of patients showing inadequate response to conventional therapies.
  • Limited efficacy of current treatments necessitates exploration of alternative and complementary approaches for depression management.

Purpose of the Study:

  • To review the intricate relationship between dietary nutrition and depression.
  • To identify safe and effective dietary components for alleviating depressive symptoms.

Main Methods:

  • Literature review focusing on the impact of diet on depression-related biological pathways.
  • Analysis of how nutrients, probiotics, and other substances modulate these pathways.

Main Results:

  • Diet influences depression via tryptophan metabolism, inflammation, hypothalamic-pituitary-adrenal (HPA) axis, microbe-gut-brain axis, brain-derived neurotrophic factor (BDNF), and epigenetics.
  • Probiotics, micronutrients, and active compounds demonstrate significant antidepressant effects by regulating these pathways.

Conclusions:

  • Dietary interventions represent a promising avenue for depression management.
  • Further research into "antidepressant foods" can lead to novel therapeutic strategies.