Written and reviewed by
Registered Dietitian, M.Sc - Dietitics / Nutrition
10 years experience
“Walnuts may promote health by changing gut bacteria”
- Walnuts in the diet change the makeup of bacteria in the gut, which suggest a new way walnut may contribute to better health. Walnuts have been called a ‘superfood’ because they are rich in omega-3 fatty acid, alpha-linoleic acid and fiber and they contain one of the highest concentrations of antioxidants. Now an additional superfood benefit of walnuts may be their beneficial changes to gut microbiota. Walnuts in the diet increases the diversity of bacteria in a gut. Walnuts increases several bacteria like Lactobacillus, typically associated with probiotics suggesting walnuts may act as a prebiotic. Prebiotics are dietary substances that selectively promote the numbers and activity of beneficial bacteria.
- The researchers conclude that the reshaping of the gut microbe community by adding walnuts to the diet suggests a new physiological mechanism to improve health. Eating walnuts has been associated with reduced cardio vascular disease risk and improve brain health.
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