Trial reportNutrition journal2012
Restriction of meat, fish, and poultry in omnivores improves mood: a pilot randomized controlled trial.
Trial report in Nutrition journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
45 citing papers in PubMed, 3 syntheses or guidelines pooled it, 114 citations in OpenAlex.
- Pooled it
- The effects of plant-based diets on the body and the brain: a systematic review.Translational psychiatry · 2019Pooled it
- Role of omega-3 fatty acids in the treatment of depressive disorders: a comprehensive meta-analysis of randomized clinical trials.PloS one · 2014Pooled it
- Trial
- Trial
- Dietetic Prescriptions in Bipolar Disorder: Nutritional Strategies to Support Mood Stability and Reduce Relapse Risk-A Narrative Review.Life (Basel, Switzerland) · 2026Review
- Feeding the mood: The role of macronutrients in depression prevention and treatment.World journal of psychiatry · 2025Review
- Arachidonic acid as a potentially critical nutrient for vegetarians and vegans - position paper of the Research Institute for Plant-based Nutrition (IFPE).Lipids in health and disease · 2025Review
- Dietary intake and five types of mental disorders: a bidirectional Mendelian randomization study.BMC psychiatry · 2025Article
- Effect of Moderate Red Meat Intake Compared With Plant-Based Meat Alternative on Psychological Well-Being: A 10-Wk Cluster Randomized Intervention in Healthy Young Adults.Current developments in nutrition · 2025Article
- Human gut microbiome, diet, and mental disorders.International microbiology : the official journal of the Spanish Society for Microbiology · 2025Review
- Nutritional Knowledge, Physical Activity, Mood, Body Satisfaction, and Life Satisfaction in Vegetarians and Nonvegetarians.Journal of nutrition and metabolism · 2025Article
- Nourishing the mind: how the EAT-Lancet reference diet (ELD) and MIND diet impact stress, anxiety, and depression.BMC psychiatry · 2024Article
- Animal and plant protein intake association with mental health, tryptophan metabolites pathways, and gut microbiota in healthy women: a cross-sectional study.BMC microbiology · 2024Article
- Impact of vegetarianism on cognition and neuropsychological status among urban community-dwelling adults in Telangana, South India: a cross-sectional study.European journal of nutrition · 2024Article
- Motivations matter: moral and health-related motives indirectly relate to differential psychological health indicators among vegetarians.Journal of health, population, and nutrition · 2024Article
- Associations between dietary habits and bipolar disorder: a diet-wide mendelian randomization study.Frontiers in psychiatry · 2024Article
- Meat consumption & positive mental health: A scoping review.Preventive medicine reports · 2024Article
- Adherence to a Vegetarian Diet is not Associated With Depression: Results From the National Health and Nutrition Examination Surveys.Psychiatry investigation · 2023Article
- The Association between Vegan, Vegetarian, and Omnivore Diet Quality and Depressive Symptoms in Adults: A Cross-Sectional Study.International journal of environmental research and public health · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOmnivorous diets are high in arachidonic acid (AA) compared to vegetarian diets. Research shows that high intakes of AA promote changes in brain that can disturb mood. Omnivores who eat fish regularly increase their intakes of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), fats that oppose the negative effects of AA in vivo. In a recent cross-sectional study, omnivores reported significantly worse mood than vegetarians despite higher intakes of EPA and DHA. This study investigated the impact of restricting meat, fish, and poultry on mood.
findingsThirty-nine omnivores were randomly assigned to a control group consuming meat, fish, and poultry daily (OMN); a group consuming fish 3-4 times weekly but avoiding meat and poultry (FISH), or a vegetarian group avoiding meat, fish, and poultry (VEG). At baseline and after two weeks, participants completed a food frequency questionnaire, the Profile of Mood States questionnaire and the Depression Anxiety and Stress Scales. After the diet intervention, VEG participants reduced their EPA, DHA, and AA intakes, while FISH participants increased their EPA and DHA intakes. Mood scores were unchanged for OMN or FISH participants, but several mood scores for VEG participants improved significantly after two weeks.
conclusionsRestricting meat, fish, and poultry improved some domains of short-term mood state in modern omnivores. To our knowledge, this is the first trial to examine the impact of restricting meat, fish, and poultry on mood state in omnivores.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.