\'Probiotics\' is the latest buzz word and refers to \'healthy\' gut bacteria which are vital to destroy \'bad\' bacteria, to boost our immune system, keep our digestion ticking and maintain and improve our overall well-being.. \'Probiotics\' is the latest buzz word and refers to \'healthy\' gut bacteria which are vital to destroy \'bad\' bacteria, to boost our immune system, keep our digestion ticking and maintain and improve our overall well-being.