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Hi David,

The hundreds (some scientists say thousands) of different probiotic strains that live in your digestive tract have been known to help with digestion and regularity. Recent research has found evidence of a relationship between such “good” bacteria and the immune system.

This is a break down of the ways probiotics benefit immunity:

• Certain bacteria in the gut influence the development of aspects of the immune system, such as correcting deficiencies and increasing the numbers of certain T cells.
• Probiotics in general help to offset the effects of bad bacteria that can cause infection
• Certain Probiotics, such as Saccharomyces boulardii, are known to increase antibodies in humans. Antibodies are the infection fighting components of your immune system, your natural defenses. 

There's still a whole lot to be learned about how probiotics affect overall immune system health, but more and more intriguing evidence comes in to support the link that intestinal bacteria bolster the immune system. Consider taking a daily probiotic to keep those good bacteria numbers up.