The Sourdough School

DIVERSITY BREAD® || PERSONALISED BREAD || BAKING AS LIFESTYLE MEDICINE

BAKE WITH THE HANDS OF AN ARTISAN AND THE MIND OF A CLINICIAN

Set within the walled gardens of Dr Vanessa Kimbell's beautiful Victorian home in rural Northamptonshire, The Sourdough School is home to the Proven Bread Programme, teaching the art and science of nutrition, the gut microbiome and fermentation in bread. We train bakers to produce Diversity Bread® and healthcare professionals to personalise bread through Baking as Lifestyle Medicine. Arrange a conversation today.

WhatsApp: +44(0)7813308301
[email protected]
Follow on Instagram

Book a consultation

  • Facebook
  • Instagram
  • Pinterest
  • Twitter

Student Login

Navigation
  • Workshops
    • Book a Call
    • 2 Day Workshops
    • 3 days Personalised Bread Workshops
    • Tuscan Retreat
    • 12 Week Post Course Support
    • Request a Callback
  • About
    • About The Sourdough School
    • Priority Access: Join the Waiting List
    • Contact Us & FAQ
    • Reviews
    • General FAQ’s about The School
    • Diversity Bread™
    • Where to stay & more
    • Training Bakers & Healthcare Professionals
    • Educational Awards Programme
    • The Team
    • A Social Enterprise
    • Contributors & Guest Tutors
    • What Our Students Say
  • Learn
    • The Diploma – January 2027
    • Request a callback
    • Graduation Recipe Collection
  • What is Proven?
    • Baking as Lifestyle Medicine (BALM)
    • Bread as Preventative Health
    • BALM & Bread in The Blue Zone
    • Proven Bread Documentary
    • Prove it – The Case Studies
    • Proven: Bread Podcast
    • Proven
    • Login
  • Personalised Bread
    • Personalising Bread Using Nutrigenetics
    • Personalisation
    • Personalising Bread

582 - ‘Does Glycemic Variability Impact Mood and Quality of Life?’. Diabetes Technology & Therapeutics. 14(4): 303–310

Reference Number: 582

Year: 2012

Authors: Sue Penckofer, Ph.D., R.N., Lauretta Quinn, Ph.D., R.N., C.D.E., Mary Byrn, Ph.D., R.N., Carol Ferrans, Ph.D., R.N., Michael Miller, Ph.D. and Poul Strange,

Link: Link to original paper

Health: Depression | Lifestyle / Sleep | Mental Health | Mindfulness

Summary

Background

Diabetes is a chronic condition that significantly impacts quality of life. Poor glycemic control is associated with more diabetes complications, depression, and worse quality of life. The impact of glycemic variability on mood and quality of life has not been studied.

Methods

A descriptive exploratory design was used. Twenty-three women with type 2 diabetes wore a continuous glucose monitoring system for 72?h and completed a series of questionnaires. Measurements included (1) glycemic control shown by glycated hemoglobin and 24-h mean glucose, (2) glycemic variability shown by 24-h SD of the glucose readings, continuous overall net glycemic action (CONGA), and Fourier statistical models to generate smoothed curves to assess rate of change defined as “energy,” and (3) mood (depression, anxiety, anger) and quality of life by questionnaires.

Results

Women with diabetes and co-morbid depression had higher anxiety, more anger, and lower quality of life than those without depression. Certain glycemic variability measures were associated with mood and quality of life. The 24-h SD of the glucose readings and the CONGA measures were significantly associated with health-related quality of life after adjusting for age and weight. Fourier models indicated that certain energy components were significantly associated with depression, trait anxiety, and overall quality of life. Finally, subjects with higher trait anxiety tended to have steeper glucose excursions.

Conclusions

Data suggest that greater glycemic variability may be associated with lower quality of life and negative moods. Implications include replication of the study in a larger sample for the assessment of blood glucose fluctuations as they impact mood and quality of life.

Significance of this study to the baker:

In this study, researchers suggest that a higher glycemic variability may be associated with lower quality of life and negative moods. This is relevant to bakers as some bread, particularly refined wheat bread, has a high GI index which can cause blood sugar spikes. Interestingly, sourdough has been shown to have a low GI index, meaning it has a less dramatic effect on blood sugar levels. This study suggests that sourdough bread, more so than its refined counterparts, can help maintain stable blood sugar levels, preventing the side-effects of blood spikes.

 

Take a look at our courses at The Sourdough School

Disclaimer

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 © 2026 Vanessa Kimbell
Call +44 (0)7813308301 | Email [email protected]
Registered in England & Wales: 08412236
Website by Callia Web