Prebiotics and Probiotics

It seems some topics circulate around periodically. I recently heard a dietician talking about prebiotics and probitoics on TV. They rise to the forefront in nutrition news every few years it seems. I decided to jump on the bandwagon and do a little research into prebiotics and probiotics and their relationship to one another.

They are both considered nutrition boosters and are both found naturally in food. They are both also found in supplement form. Whenever possible I recommend getting your nutrition from food rather than supplements though as they are more readily digested and absorbed that way.

Probiotics are probably most familiar to us. They are active, living cultures considered “friendly bacteria”. They are found naturally in your gut and they help reintroduce or change bacteria in your intestine. They help maintain healthful bacteria in the intestines and improve immune health. The best known source is probably live-cultured yogurt. Other sources include sauerkraut, kimchi, miso, green pickles and tempeh.

Prebiotics are not living bacteria.  They are nondigestible and are usually fibers found in raw food. They promote the growth of friendly bacteria in probiotics and help protect the intestines from unfriendly bacteria. Prebiotics selectively feed good gut bacteria. Sources of prebiotics include asparagus, garlic, onion, wheat bran, artichokes, bananas, aged cheese and soybeans.

Prebiotics and probiotics are generally recognized as safe and few people experience side effects. If you have a compromised immune system however, it is a good idea to check with your doctor before adding them into your diet. Studies suggest adding these into your diet helps support a strong immune system however there is potential danger in promoting overgrowth of good and bad bacteria in patients with weak immune systems.  If you do decide to add them into your diet, try to include a combination of both prebiotics and probiotics in the same meal. They work together to help improve your gut health. A yogurt parfait with a banana in would be an example of combining probiotics and prebiotics.

Marcia Steed

I graduated from Iowa State University with a degree in Home Economics Education. I enjoy spending time with my family and friends and traveling.

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