There are more than 1,000 different types of bacteria that live in human digestive track system. The bacteria help to break down food and absorb nutrients. But, when we take antibiotics, medicine that is designed to kill illness-causing bacteria, the drugs can also kill the healthy intestinal bacteria that helps us digest. It causing digestion disorder, for example diarrhea, cramps, bloating, constipation, and abdominal pain. Taking probiotics can repopulate the digestive tract with healthful bacteria. The study found that it was a viable solution for many digestion problem. Probiotics are good for digestive health.