Dr Joseph Firth, an Honorary Research fellow at The University of Manchester and Research Fellow at NICM Health Research Institute at Western Sydney University, says existing research has been unable to definitively establish if dietary improvement could benefit mental health.
But in a new study published in Psychosomatic Medicine, Dr Firth and colleagues brought together all existing data from clinical trials of diets for mental health conditions.
Study - Evidence - Improvement - Symptoms - Depression
And the study provides convincing evidence that dietary improvement significantly reduces symptoms of depression, even in people without diagnosed depressive disorders.
Dr Firth said: "The overall evidence for the effects of diet on mood and mental well-being had up to now yet to be assessed.
Meta-analysis - Peoples - Mood - Effects - Anxiety
"But our recent meta-analysis has done just that; showing that adopting a healthier diet can boost peoples' mood. However, it has no clear effects on anxiety."
The study combined data from 16 randomised controlled trials that examined the effects of dietary interventions on symptoms of depression and anxiety.
Sixteen - Trials - Outcome - Data - Participants
Sixteen eligible trials with outcome data for 45,826 participants were included; the majority of which examined samples with non-clinical depression.
The study found that all types of dietary improvement appeared to have equal effects on mental health, with weight-loss, fat reduction or nutrient-improving diets all having similar benefits for depressive symptoms.
News - Dr - Firth - Effects - Type
"This is actually good news" said Dr Firth; "The similar effects from any type of dietary improvement suggests that highly-specific or specialised diets are...
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