Aren’t bacteria harmful?

There is an amazing amount of bacterial cells associated with the human body. Most are not harmful, and many contribute to normal human growth and development. It is believed that good gut bacteria make up about 70% to 80% of the body’s total immune system. However, some can have a negative influence and cause various diseases. That is why it’s important that the balance of microbes be maintained to favor the beneficial bacteria over the potentially harmful ones. The ratio of beneficial to potentially harmful bacteria in the gut should be 80/20. Probiotics help maintain a proper balance of good bacteria and bad bacteria in the body.