Streptococcus Thermophilus
Benefits of Streptococcus Thermophilus
- Gut microbiome
- Digestion
- Form: Bacteria
- Food source: Plant-based yoghurts and other fermented plant-based foods made with live cultures (check the label for S. thermophilus).
What is Streptococcus Thermophilus?
Streptococcus thermophilus is one of the most widely used live bacteria in food, alongside members of the Lactobacillus and Bifidobacterium groups. S. thermophilus is the second most-used bacterium in the dairy industry, thanks to its role in making yoghurt and ripening cheese, and it is used in plant-based yoghurts too. It is consumed by millions of people every day. S. thermophilus breaks down sugars, such as lactose, into lactic acid, which is what makes it so useful in fermentation.
What does the research say about Streptococcus Thermophilus?
S. thermophilus is often one of several strains in multi-strain preparations, which researchers have studied for their effects on digestive wellbeing, bowel habits and stool consistency.
Multi-strain and synbiotic preparations have also been studied in relation to body fat mass and body weight, BMI and fasting glucose. Researchers are also interested in the 'gut-brain axis', the two-way communication between the gut and the brain. Gut bacteria produce short-chain fatty acids, and these have been studied for their effects on the neurotransmitter GABA.
Live bacteria like S. thermophilus feed on fibres known as prebiotics, so it's worth including these in our diet. One of the best known is inulin, which can be found in a range of fruit and vegetables.
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