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It has not yet been peer reviewed by a journal. The National Library of Medicine is running a pilot to include preprints that result from research funded by NIH in PMC and PubMed. medRxiv Actions * Search in PubMed * Search in NLM Catalog * Add to Search . 2023 Mar 21;2023.03.18.23287442. doi: 10.1101/2023.03.18.23287442. Preprint The Role of Diet on the Gut Microbiome, Mood and Happiness Sydney E Martin, Colleen S Kraft, Thomas R Ziegler, Erin C Millson, Lavanya Rishishwar, Greg S Martin * PMID: 36993403 * PMCID: PMC10055576 * DOI: 10.1101/2023.03.18.23287442 Free PMC article Item in Clipboard The Role of Diet on the Gut Microbiome, Mood and Happiness Sydney E Martin et al. medRxiv. 2023. Free PMC article Show details Display options Display options Format [Abstract] medRxiv Actions * Search in PubMed * Search in NLM Catalog * Add to Search . 2023 Mar 21;2023.03.18.23287442. doi: 10.1101/2023.03.18.23287442. Preprint Authors Sydney E Martin, Colleen S Kraft, Thomas R Ziegler, Erin C Millson, Lavanya Rishishwar, Greg S Martin * PMID: 36993403 * PMCID: PMC10055576 * DOI: 10.1101/2023.03.18.23287442 Item in Clipboard Full text links Cite Display options Display options Format [Abstract] Abstract The gut microbiome may be both helpful and harmful, and not only is it affected by diet, it has also been shown to affect mental health including personality, mood, anxiety and depression. In this clinical study we assessed dietary nutrient composition, mood, happiness, and the gut microbiome in order to understand the role of diet in the gut microbiome and how that affects mood and happiness. For this pilot study, we enrolled 20 adults to follow this protocol: recording a 2-day food log, sampling their gut microbiome, and completing five validated surveys of mental health, mood, happiness and well-being, followed by a minimum 1 week diet change and repeating the food log, microbiome sampling and the 5 surveys. The change from a predominantly Western diet to vegetarian, Mediterranean and ketogenic diets led to changes in calorie and fiber intake. After the diet change, we observed significant changes in measures of anxiety, well-being and happiness, and without changes in gut microbiome diversity. We found strong correlations between greater consumption of fat and protein to lower anxiety and depression, while consuming higher percentages of carbohydrates was associated with increased stress, anxiety, and depression. We also found strong negative correlations between total calories and total fiber intake with gut microbiome diversity without correlations to measures of mental health, mood or happiness. We have shown that changing diet affects mood and happiness, that greater fat and carbohydrate intake is directly associated with anxiety and depression and inversely correlated with gut microbiome diversity. This study is an important step towards understanding how our diet affects the gut microbiome and in turn our mood, happiness and mental health. Figures Figure 6. Figure 6. Correlation between uBiome diversity and... Figure 6. Correlation between uBiome diversity and total fiber for all timepoints (p=0.0533) Figure 6. Correlation between uBiome diversity and total fiber for all timepoints (p=0.0533) Figure 1. Figure 1. Timeline for participant completion of... Figure 1. Timeline for participant completion of the study. Figure 1. Timeline for participant completion of the study. Figure 2. Figure 2. Diet Types at Baseline and... Figure 2. Diet Types at Baseline and at Follow-Up Figure 2. Diet Types at Baseline and at Follow-Up Figure 3. Figure 3. Changes in Mood and Happiness... Figure 3. Changes in Mood and Happiness after Diet Change Figure 3. Changes in Mood and Happiness after Diet Change Figure 4. Figure 4. Change in HADS Anxiety correlation... Figure 4. Change in HADS Anxiety correlation with change in percent fat (p-value of 0.0239) Figure 4. Change in HADS Anxiety correlation with change in percent fat (p-value of 0.0239) Figure 5. Figure 5. Change in HADS Anxiety correlation... Figure 5. Change in HADS Anxiety correlation with change in percent carbohydrates (p-value of 0.0041) Figure 5. Change in HADS Anxiety correlation with change in percent carbohydrates (p-value of 0.0041) See this image and copyright information in PMC Similar articles * Associations between Diet, the Gut Microbiome, and Short-Chain Fatty Acid Production among Older Caribbean Latino Adults. Maldonado-Contreras A, Noel SE, Ward DV, Velez M, Mangano KM. Maldonado-Contreras A, et al. J Acad Nutr Diet. 2020 Dec;120 (12):2047-2060.e6. doi: 10.1016/j.jand.2020.04.018. Epub 2020 Aug 12. J Acad Nutr Diet. 2020. PMID: 32798072 * Effect of 30 days of ketogenic Mediterranean diet with phytoextracts on athletes' gut microbiome composition. Mancin L, Amatori S, Caprio M, Sattin E, Bertoldi L, Cenci L, Sisti D, Bianco A, Paoli A. Mancin L, et al. Front Nutr. 2022 Oct 25;9:979651. doi: 10.3389/fnut.2022.979651. eCollection 2022. Front Nutr. 2022. PMID: 36386948 Free PMC article. * Macronutrients and the state of happiness and mood in undergraduate youth of a military training course. Salehi Z, Ghosn B, Rahbarinejad P, Azadbakht L. Salehi Z, et al. Clin Nutr ESPEN. 2023 Feb;53:33-42. doi: 10.1016/ j.clnesp.2022.11.013. Epub 2022 Nov 19. Clin Nutr ESPEN. 2023. PMID: 36657928 * A review of dietary and microbial connections to depression, anxiety, and stress. Taylor AM, Holscher HD. Taylor AM, et al. Nutr Neurosci. 2020 Mar;23(3):237-250. doi: 10.1080/1028415X.2018.1493808. Epub 2018 Jul 9. Nutr Neurosci. 2020. PMID: 29985786 Review. * Diet, nutrients and the microbiome. Dahl WJ, Rivero Mendoza D, Lambert JM. Dahl WJ, et al. Prog Mol Biol Transl Sci. 2020;171:237-263. doi: 10.1016/ bs.pmbts.2020.04.006. Epub 2020 Apr 25. Prog Mol Biol Transl Sci. 2020. PMID: 32475524 Review. See all similar articles References 1. 1. Sharon G, Sampson TR, Geschwind DH, Mazmanian SK. The Central Nervous System and the Gut Microbiome. Cell. 2016; 167(4): 915-932. - PMC - PubMed 2. 1. Mayer EA. Gut feelings: the emerging biology of gut-brain communication. Nat Rev Neurosci. 2011; 12(8):453-66. doi: 10.1038/nrn3071. - DOI - PMC - PubMed 3. 1. Tillisch K, Labus I, Kilpatrick L, Jiang Z, Stains I, Ebrat B, Guyonnet D, Legrain-Raspaud S, Trotin B, Naliboff B, Mayer EA. Consumption of fermented milk product with probiotic modulates brain activity. Gastroenterology. 2013; 144 (7):1394-401, 1401.e1-4. doi: 10.1053/j.gastro.2013.02.043. - DOI - PMC - PubMed 4. 1. Microbiome Sudo N., HPA axis and production of endocrine hormones in the gut. Adv Exp Med Biol 2014; 817:177-94. doi: 10.1007/978-1-4939-0897-4_8. - DOI - PubMed 5. 1. Mayer EA, Tillisch K, Gupta A. Gut/brain axis and the microbiota. J Clin Invest. 2015; 125(3):926-38. doi: 10.1172/ JCI76304. - DOI - PMC - PubMed Show all 31 references Publication types * Preprint Actions + Search in PubMed + Search in MeSH + Add to Search LinkOut - more resources * Full Text Sources + Cold Spring Harbor Laboratory + Europe PubMed Central + PubMed Central Full text links [x] full text provider logo Cold Spring Harbor Laboratory Free PMC article [x] Cite Copy Download .nbib Format: [NLM] Send To * Clipboard * Email * Save * My Bibliography * Collections * Citation Manager [x] NCBI Literature Resources MeSH PMC Bookshelf Disclaimer The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited. Follow NCBI Connect with NLM * * * National Library of Medicine 8600 Rockville Pike Bethesda, MD 20894 Web Policies FOIA HHS Vulnerability Disclosure Help Accessibility Careers * NLM * NIH * HHS * USA.gov