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Joseph Firth
Dietary interventions can significantly reduce depressive symptoms, according to the results of a systematic review and a published meta-badysis in Psychosomatic medicine.
"Many recent large-scale badyzes have examined the beneficial effects of exercise on mental health, and yet no one has looked at the overall data on the use of dietary improvement for improve mental health – even though diet is obviously a very important aspect of a healthy lifestyle., " Joseph Firth, PhD, of the NICM Health Research Institute, Western Sydney University, Australia, and the Division of Psychology and Mental Health, University of Manchester, United Kingdom, Health Psychiatry.
The researchers conducted a systematic review of online databases of all randomized controlled trials of dietary interventions reporting changes in depressive and / or anxiety symptoms in clinical and non-clinical populations. They then performed random-effects meta-badyzes to determine the effects of dietary interventions versus control conditions on these symptoms.
A total of 16 studies with outcome data for 45,826 participants were included in the badyzes, of which 15 were in patients with non-clinical depression.
The results showed that dietary interventions significantly attenuated depressive symptoms compared to control conditions, with a small cumulative effect (g = 0.275, 95% CI, 0.1-0.45). The heterogeneity was significant in the study data (I² = 89.4%).
Dietary interventions can significantly reduce depressive symptoms, according to the results of a systematic review and a meta-badysis.
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The researchers observed similar effects when evaluating high quality trials (g = 0.321, 95% CI, 0.12-0.53) and compared with inactive controls (g = 0.308, 95% CI). %, 0.02-0.6) and active (g = 0.174). ; 95% CI, 0.01-0.34). However, they found that dietary interventions did not influence anxiety (g = 0.1, 95% CI: 0.04 to 0.24).
The badysis of the only study using a clinically depressed sample (n = 67) revealed a significantly greater decrease in depressive symptoms resulting from a 12-week modified Mediterranean diet intervention compared to "social support" , according to the results.
In addition, studies involving only female samples showed significantly superior benefits in terms of depressive and anxiety symptoms resulting from dietary interventions.
"According to our findings, the message at home would be that all types of healthy diets seemed to have similar effects on mental health – this includes dieting for obese people, or diets that improve nutrients to increase weight loss." Food intake health – without significant difference. differences between different types of plans, "said Firth. Health Psychiatry.
"For me, this would suggest that simply making simple changes (such as reducing take-home and junk food and increasing vegetable intake) seems enough to improve mood," he continued. "All extreme diets are probably completely useless for the average person."
Brendon Stubbs
In addition, these findings add to the growing evidence that supports lifestyle interventions to boost mood, Brendon Stubbs, PhD, from the Institute of Psychiatry, Psychology and Neuroscience at King's College London, said in the press release.
"Specifically, our findings in this study showed that when dietary interventions were badociated with exercise, depressive symptoms were further improved," Stubbs said. "Together, our data highlight the central role of a healthier diet and take regular exercise to act as a viable treatment to help people with low mood." – by Savannah Demko
Disclosures: Firth reports the support of a scholarship from the Blackmores Institute. Stubbs reports support from Health Education England and the HEE / NIHR ICA Clinical Lecture Program from the National Institute of Health Research.
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