The Sourdough School

BALM – Proven as one of the healthiest approaches to bread in the world.

Based in the walled gardens of Dr. Vanessa Kimbell's beautiful Victorian home in rural Northamptonshire, UK, we tutor individuals and train bakers and healthcare professionals in Baking as Lifestyle Medicine (BALM). Personalising bread to your lifestyle, gut microbiome, and unique genetics for optimal health—tailoring fermentation, fibre, and diversity so that your daily bread becomes the foundation of your health.

+44(0)7813308301
[email protected]
Follow on Instagram
  • Facebook
  • Instagram
  • Pinterest
  • Twitter

Student Login

Schedule a Call to Learn More

Navigation
  • Home
    • About The Sourdough School
    • Contact Us & FAQ
    • Request a Callback
    • Practical Information
    • The Team
    • A Social Enterprise
    • General FAQ’s about The School
    • Contributors & Guest Tutors
    • What Our Students Say
    • Login
  • Courses
    • Priority Access: Join the Waiting List
    • Workshops
    • Bake For Health Retreat
    • Tuscan Retreat
    • Diploma
  • Assessments
    • Initial Consultation
    • Follow Up Nutrigenomic Reports
    • Gut Health Analysis
  • Our Approach
    • Baking as Lifestyle Medicine (BALM)
    • 12 Week Student Support Pack
    • Bread as Preventative Health
    • Personalising Bread Using Nutrigenetics
    • Training Bakers & Healthcare Professionals
    • Diversity Bread™
    • Prove it – The Case Studies
    • BALM & Bread in The Blue Zone
    • Proven: Bread Podcast
  • Admissions
    • Request a callback
    • Location, Opening Hours & Course Days & Times
    • Reviews
  • Shop
    • Our Flour and Ingredients
    • Our Books
    • Equipment
    • Flours From Farmers Directory
    • Add Farmer to the Directory

203 - ‘Walnut Consumption Alters the Gastrointestinal Microbiota, Microbially Derived Secondary Bile Acids, and Health Markers in Healthy Adults: A Randomized Controlled Trial’. The Journal of Nutrition. 148(6), 861-867

Reference Number: 203

Year: 2018

Authors: Holscher, H.D. et al

Link: Link to original paper

Health: Gut Microbiome - Creating Healthier Bread to Support Optimal Gut Health

Inclusions: Nuts>Walnuts

Summary

Epidemiologic data suggest that diets rich in nuts have beneficial health effects, including reducing total and cause-specific mortality from cancer and heart disease. Although there is accumulating preclinical evidence that walnuts beneficially affect the gastrointestinal microbiota and gut and metabolic health, these relations have not been investigated in humans.

We aimed to assess the impact of walnut consumption on the human gastrointestinal microbiota and metabolic markers of health.

 

SIGNIFICANCE OF THIS STUDY

Studies have suggested a diet rich in nuts has beneficial health effects. This research looked at whether eating walnuts affected the gut microbes. They found that the relative numbers of gut bacteria and the acids they produce changed when walnuts were included in the diet, suggesting that the health effects may be linked to our microbiome.

Including nuts, especially walnuts, in our baking could potentially have positive health benefits.

Take a look at our courses at The Sourdough School

All reasonable care is taken when advising about health aspects of bread, but the information that we share is not intended to take the place of treatment by a qualified medical practitioner. You must seek professional advice if you are in any doubt about any medical condition. Any application of the ideas and information contained on this website is at the reader's sole discretion and risk.

  • Facebook
  • Instagram
  • Pinterest
  • Twitter

Email Sign Up

BANT Member
Lifecode GX

Terms and Conditions | Privacy Policy
Copyright © 2025 Vanessa Kimbell
Call +44 (0)7813308301 | Email [email protected]
Registered in England & Wales: 08412236
Website by Callia Web