Billions of bacteria live in the human body, most of which inhabit our gut and are essential for the proper functioning of the gastrointestinal tract. Our digestive system consists of around 80% beneficial and 20% pathogenic (disease-causing) bacteria. When the "bad" bacteria outnumber the "good" ones, we get sick.

A new probiotic has recently appeared in pharmacies, ProViotic Helicobacter, which is ever more successfully replacing antibiotics in the fight against gastritis and ulcers.