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What Are the Common Types of Bacteria Found in Probiotics?

The most common bacteria belong to groups called Lactobacillus and Bifidobacterium.

Many types of bacteria can be considered probiotics. Of these, two specific types are commonly found in probiotic supplements available in stores. These include:

  1. Lactobacillus: commonly used for infectious diarrhoea and diarrhoea in people taking antibiotics.[1]
  2. Bifidobacterium: commonly used for diarrhoea, constipation, irritable bowel syndrome (IBS) and preventing the common cold.[2]

Probiotics are also made up of good yeast. Saccharomyces boulardii is one such probiotic commonly used for treating and preventing diarrhea.[3]

1. (2021). ‘Lactobacillus’. MedlinePlus. 17 June. Available at: <>
2. (2021). ‘Bifidobacteria’. MedlinePlus. 17 June. Available at: <>
3. (2021). ‘Saccharomyces Boulardii’. MedlinePlus. 26 July. Available at: <>

Please note that all medical articles featured on our website have been reviewed by qualified healthcare doctors. The articles are for general information only and are not medical opinions nor should the contents be used to replace the need for a personal consultation with a qualified medical professional on the reader's medical condition.

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