Do you need some kind of bacteria in your body?

Answer 1

Some bacteria synthesize vitamins that your body cannot. A non-pathogenic strain of E. coli, for example, synthesizes vitamin K, used in clotting. Bacteria help properly digest food, extracting precious nutrients which your body then uses. Harmful bacteria is often killed by the good bacteria, known as microbiota, or incorrectly, normal flora.

Answer 2

bacteria are very important for our body.there are useful bacteria which prevent the invasion and colonisation of pathogenic bacteria on and in human body.
for eg:- useful coliforms produce colicin which kill the pathogenic bacteria, few bacteria produce vitamins in need ,the resident bacteria on the skin prevents the colonisation of dermatophytes which cause diseases like ring worm etc.

apart from this there are oppurtunistic pathogens wich may lead to harmful conditions when your immmune response fall?(such as in case of avoiding nutritious food or in unhygenic onditions.

Answer 3

Yes, you do need bacteria in you because not all bacteria are bad; some are beneficial. For examle, bacteria helps you digest your food in your stomach.

Answer 4

Without them we wouldn't be able to survive. They help us digest food, produce vitamins, and occupies niches that otherwise would be available for competing pathogens.