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Dr Alan Walker

Dominant and diet-responsive groups of bacteria within the human colonic microbiota

Alan Walker

 +44 (0)1224 438739

The Rowett Institute
Ashgrove Rd W
AB25 2ZD


I am a microbiologist at the Rowett Institute. My research investigates how the diet that we eat influences the microbes that live in our intestines, and in turn what impacts these diet-microbe interactions might have on our health. Work carried out at The Rowett has identified many of the key gut bacteria that respond to specific components of our diet, and we are now working to better understand the roles that these diet-responsive gut bacteria might play in the human body, for example by protecting us from invading pathogens that can cause disease. Ultimately, knowledge gained should feed into innovative attempts to develop microbiome-directed foods or therapeutic interventions. You can find out more about my research here:

Research Papers (DOI)

Leading Ideas

  • Healthier Diets

Area of Strategic Research Programme

Further information the Scottish Government's Strategic Research Programme is available

  • Theme 3: Food, Health and Wellbeing
  • 3.2 - Healthy Diets and Dietary Choice
  • 3.2.2 Dietary components of healthy diets and their effects