What are the four main families of probiotics?

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Click here to read the article entitled “Are Probiotics Right for You?” from Tufts University.

Based on your reading, answer the following questions:

  • What are the four main families of probiotics?
  • What foods provide us with these bacteria? Are any of these foods unfamiliar to you? If yes, which ones?
  • Under what conditions supplementation with probiotics might be recommended? Do you think that probiotic use may be rejected because of cost? Is there any way to measure probiotic levels in the large intestine to determine if supplementation is necessary?

Are there any potential contraindications or interactions you need to be aware of? Would any of these threaten the nutritional status of the person taking the probiotics?