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Mennesker med en plantebaseret diæt havde dobbelt så stor sandsynlighed for at tage receptpligtige lægemidler for psykisk sygdom og næsten tre gange mere udsatte at overveje selvmord end kødspisere.
En vegetarisk eller vegansk diæt kan øge sandsynligheden for depression, har en amerikansk-baseret undersøgelse fundet.

Mennesker med en plantebaseret diæt var dobbelt så sandsynlige at tage receptpligtige lægemidler til mental sygdom og næsten tre gange så sandsynligt at overveje selvmord.

Rapporten, der så på mere end 160.000 mennesker, fandt også, at en chokerende en ud af tre vegetarer lider af depression eller angst.


Researchers reviewed 18 studies examining the relationship between mental health and eating meat, involving a total of 160,257 participants.

They concluded that vegetarians and vegans had 'significantly' higher rates or risk of depression, anxiety and self harm.

The researchers suggest that avoiding meat may be a 'behavioural marker' indicating people already with poor mental health.

This is a suggestion that requires more research to back it up, the researchers say.

University of Alabama researchers write in the study: 'Those who avoided meat consumption had significantly higher rates or risk of depression, anxiety, and/or self-harm behaviours.

'Our study does not support avoiding meat consumption for overall psychological health benefits.'

Dr Edward Archer, from the University of Alabama and one of the study's authors, said: 'While the risks and benefits of vegan and vegetarian diets have been debated for centuries, our results show that meat eaters have better psychological health.

'These findings have implications when defining what constitutes a 'healthy diet'. Mental health may need to be emphasised when evaluating the benefits and risks of particular dietary patterns.'

Echoing the report's findings, Aseem Malhotra, an NHS Consultant Cardiologist, said in a tweet: 'In general, if you want to avoid increased risk of depression, anxiety and self-harm behaviour then do eat meat.

'If you're vegan or vegetarian for ethical reasons, then please personally invest extra in strategies to protect your mental health.'

The study, entitled 'Meat and Mental Health: A systematic review of meat abstention and depression, anxiety and related phenomena', is published in the journal Critical Reviews in Food Science and Nutrition.