Probiotics are linked to long life...
For centuries natives of the Balkan islands have enjoyed extraordinary long and healthy lives. It was eventually determined that their good fortune was, in part, due to the fact that they ingest large quantities of lactobacilli (good bacteria) at every meal.

A Large breed pet weighing 65-70 pounds needs up to 1.5 pounds of beneficial bacteria in its gut to protect against disease and illness!

Without good bacteria, a pet's body would be unable to fight off disease, absorb food properly, and their intestines become overrun with toxins and waste, which sets up a breeding ground for disease. Unfortunately, every time your pet drinks chlorinated water, eats fatty foods, gets stressed or becomes overly tired, good bacteria is destroyed in his or her body. Even the pet foods we feed our pets to keep them healthy, like meat and poultry can contain antibiotics, further reducing the levels of good bacteria. For most pets this means they are negatively affecting their bodies' ability to stay healthy on a daily basis.