You have roughly 10X more bacterial cells than human cells in your body—that’s over 100 trillion!

The human body has more than 1,000 different strains that include beneficial bacteria and yeasts, and each individual has his or her own unique population of microbes, like an intestinal thumbprint.

Probiotics in your gut help you digest food and absorb nutrients.*

With at least 70% of the immune system living in the gut, probiotics are known to support immune health.*

Everyday factors such as stress, diet, and aging can reduce the number of beneficial bacteria in the body.

Probiotics help reduce inflammation in the gut, which helps provide nutrition for the cells of the intestinal lining.*

Microbes in your body outweigh your brain. The brain weighs about 3 pounds, and a healthy human body has more than 3.5 pounds of good bacteria.

Probiotics can be found naturally in fermented, uncooked foods such as yogurt, kefir, cottage cheese, sauerkraut, pickled veggies, miso, tempeh, kombucha, natto, and kimchi.

Probiotics are ingested and mainly colonize the gut, but their health benefits extend throughout the body—including the skin, mouth, and nose.

Gut bacteria play an important role in manufacturing important vitamins, including vitamin A, vitamin B12, and vitamin K.