Probiotics are foods, like yogurt, or dietary supplements that contain living bacteria. why would someone want to knowingly consume bacteria? to reduce the ability of pathogens to populate the gut to populate their gut with "good" bacteria to reduce or eliminate gastrointestinal problems all of these choices are correct.

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Probiotics also known as good bacteria are beneficial to one's health. The answer to the question is all of the choices are correct. They also prevent the harmful bacteria to grow, helps in having low cholesterol and regulate metabolism as well.

Answer: All of these choices are correct.

Probiotics like yogurt contain good bacteria that help reduce the ability of pathogens to colonize the gut and help eradicate gastrointestinal problems. In addition, the good bacteria from yogurt assist our own bacteria to fight pathogens and reduce gut inflammation.