The Practical Wellness Series
Gut Health: Further Reading
& Resources
The research behind Gut Health for Weight Loss — peer-reviewed studies,
books, and tools, curated for readers who want to go deeper.
How to read research papers without getting lost: You don't need to read the whole
paper. Read the Abstract first, then jump to Results and Conclusions. Everything
listed here links to the free full-text version where available.
No subscription required. Every journal paper linked below is freely accessible — either on PubMed Central,
Frontiers in Medicine, or the journal's own open-access page. No paywall, no institutional login needed.
Microbiome Science
4 papers
Journal Paper · Fermented Foods
Gut-Microbiota-Targeted Diets Modulate Human Immune Status
Wastyk, H.C. et al. (2021). Cell, 184(16), 4137–4153.
The Stanford trial showing a high-fermented-food diet significantly increases microbiome diversity and decreases inflammatory markers — the evidence base for the fermented food recommendations in the book.
Journal Paper · Plant Diversity
Diet-Induced Alterations in Gut Microflora Contribute to Lethal Pulmonary Damage in TLR2/TLR4-Deficient Mice
Sonnenburg, J. & Bäckhed, F. (2016). Nature, 535, 56–64.
Landmark research demonstrating how diet directly shapes microbiome composition — the scientific foundation for the 30 plants per week recommendation.
Research Overview · ZOE / King's College London
The Human Gut Microbiome & Health
Spector, T. & the ZOE Science Team (ongoing). King's College London.
Professor Tim Spector's ongoing citizen science project — the largest microbiome study in history. Foundational to the book's dietary recommendations.
Journal Paper · Microbiome & Sleep
Association Between Sleep and Gut Microbiota: A Systematic Review and Meta-Analysis
Wu, L. et al. (2023). Frontiers in Microbiology, 14.
Comprehensive review of the bidirectional gut–sleep relationship — directly supports the sleep connection section of the book.
Gut & Weight Loss
3 papers
Journal Paper · Akkermansia & Metabolism
Akkermansia muciniphila and Improved Metabolic Health
Plovier, H. et al. (2017). Nature Medicine, 23, 107–113.
The key research on Akkermansia muciniphila — the bacterium specifically associated with healthy weight management and metabolic health mentioned in the Sluggish Gut guide.
Journal Paper · Short-Chain Fatty Acids
Short-Chain Fatty Acids and Their Association with Signalling Pathways in Inflammation and Cancer
Tan, J. et al. (2014). Frontiers in Oncology, 4, 196.
Explains how SCFAs — produced when gut bacteria ferment fibre — regulate metabolism, suppress appetite, and reduce inflammation. The mechanism behind the legumes and fibre recommendations.
Journal Paper · Exercise & Microbiome
Exercise and the Gut Microbiome: A Review of the Evidence, Mechanisms and Implications for Human Health
Mailing, L.J. et al. (2019). Exercise and Sport Sciences Reviews, 47(2), 75–85.
The evidence for post-meal walking and moderate exercise increasing Akkermansia and other beneficial bacteria — the basis for the movement recommendations in the guides.
Gut–Brain Axis
3 papers
Journal Paper · Vagus Nerve
Vagal Pathways for Microbiome-Brain-Gut Axis Communication
Cryan, J.F. et al. (2019). Nature Reviews Neuroscience, 20, 305–318.
The definitive review of how the gut communicates with the brain via the vagus nerve — directly relevant to the Stressed Gut guide's vagal tone techniques.
Journal Paper · Gut Permeability
Leaky Gut and the Ingredients That Help Treat It
Mu, Q. et al. (2017). Frontiers in Immunology, 8, 598.
The science of intestinal permeability ("leaky gut") — what disrupts the gut lining and what supports its repair. Relevant to the Inflamed Gut guide's dietary recommendations.
Clinical Overview · Johns Hopkins
The Gut-Brain Connection
Johns Hopkins Medicine (2023).
Clear, accessible overview of the gut-brain axis from one of the world's leading medical institutions — excellent starting point for readers new to this area.
Books Worth Reading
3 books
Book · Microbiome & Health
The Diet Myth
Spector, T. (2015). Weidenfeld & Nicolson.
Professor Tim Spector's landmark book on how the microbiome shapes weight, health and wellbeing. The most accessible entry point to the science behind this book's recommendations.
Book · Gut Health Science
Gut: The Inside Story of Our Body's Most Under-Rated Organ
Enders, G. (2015). Scribe Publications.
A witty, accessible tour of gut biology — covers digestion, the microbiome, and the gut-brain connection in clear language. An excellent companion read.
Book · Sleep & Rest
MyMindGym: Sleep — Rest, Recover, Reset
Moore, S. (2025). MyMindGym™ Mental Fitness Series.
The companion book — covers how gut health disrupts sleep, and includes the 7-night sleep reset plans for Overthinkers, Racehorses, and Light Sleepers.
Tools & Apps
3 tools
App · Food & Microbiome Tracking
ZOE
Available: iOS & Android. Subscription required for full features.
Professor Tim Spector's personalised nutrition app, built on microbiome science. Tracks how your body responds to food. Directly aligned with the book's dietary approach — and the most scientifically rigorous app in this space.
App · Plant Food Tracking
Plant Jotter (or any note app)
Any platform. Free.
The simplest tool for tracking your 30 plants per week: a running note on your phone. Open it before meals, add any new plants you eat. No app needed — the habit is what matters, not the technology.
Database · Research
PubMed Central
National Institutes of Health. Free access.
The world's largest free database of biomedical research. Search any gut health topic here — filter by "Free full text" to access papers without a subscription.
The Practical Wellness
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