Probiotics: The Good Bacteria

“Probiotic” — seems like that word pops up more and more in the dairy aisle these days. Many foods are sporting probiotic labels and promising digestive bliss, but does this bacteria deserve all the hype? Here are the basics.

What Are Probiotics?
These are live microorganisms that help keep your digestive system in working order. Your digestive tract is teeming with bacteria — the good guys help breakdown food, while the bad guys can cause illness. Since only a certain amount of bacteria occupies your digestive tract at one time, eating probiotics helps outnumber unhealthy bacteria. Keeping a balance of good regulates digestion and may also benefit the immune system.

Sources of Probiotics
Probiotics are in yogurt, some cheeses and fermented dairy products such as kefir, a cultured milk beverage that tastes similar to yogurt, only thinner.

When probiotic browsing, check labels for the two most common ones: Lactobacillus and Bifidobacterium. On an ingredient list, these are usually abbreviated as “L.” or “B.” followed by the specific species name (examples: L. acidophilus, L. casei, B. bifidum and B. Longum). Don’t worry about looking for special packaging or paying a premium; most yogurt products contain these types of good bacteria. Probiotics are also in non-dairy foods — soy products such as miso and tempeh. Some snack foods — granola bars, for example — have them added.

Supplements are also available in capsule and powder forms. Folks often take probiotic pills to help alleviate an upset stomach while traveling. And if you’re on antibiotics, you may want to take in some extra probiotics (from food or supplements); antibiotic medications zap all the bacteria in your body — healthy and unhealthy. But remember, before taking any supplements while on medication (or anytime really), check with your doctor.

Ways to Enjoy Them
If you’re worried about it affecting your diet, no need. Foods with probiotics tend to be whole foods that are loaded with nutrients. Nonfat or low-fat yogurt is an easy snack; you can also add it to salad dressings or beverages. Try a mango lassi to cool off a spicy meal or add yogurt to a flavorful meat marinade. Kefir gives smoothies creaminess and tang.

For more on the science and specifics of probiotics, check out the National Institutes of Health.

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18 Comments

I have always wondered about this, great article!

macgaff on January 26, 2009 at 11:19 pm

Good article

Mary on January 28, 2009 at 5:41 pm

Since Probiotic yogurt contains live yogurt cultures is it alright to eat it past the fresh date on the package.

Cecelia on January 28, 2009 at 8:20 pm

there is literally an epidemic of CDF, a very difficult to treat disease that can be very difficult to treat and is killing many. It is caused by the overuse of antibiotics and is highly contageous. Ironically enough it is treated with the use of high doses of super antibiotics. My mother passed away recently from the ravages of this disease. Everyone should be on probiotics. Most probiotics in food have lost there effectiveness by the time they are consumed. Yogurt is one of example of a food advertising its probiotic qualities when in actuality, the probiotics are gone by the time consumed. This article was a piece of fluff!

elizabeth on January 28, 2009 at 9:33 pm

The Best probiotics are “The Garden of Life” Primal Defense caplets. Really Great. The article was good but brief. It barely touched on all of the benefits of adding probiotics to your diet. Probiotics changed my health drastically.

tobie on January 28, 2009 at 10:02 pm

thanks…much appreciated!

pam on 1/28/09 at 7:30 pm on January 28, 2009 at 10:37 pm

Thank you, I was not quite sure what and where probiotics were. Very good article.

ardee on January 29, 2009 at 4:51 am

I have never had a yeast infection in my life and after taking Probiotics, I have had re-occuring ones. This is from the National Institutes of Health.
website. Probiotics might theoretically cause infections that need to be treated with antibiotics, especially in people with underlying health conditions.

Kathy on January 29, 2009 at 6:57 am

Hi Cecelia- It is always best to follow the use by dates, they are there to help protect the freshness and overall quality of foods.

Dana White on January 29, 2009 at 10:39 am

GNC (the dietary supplement store in business for over 70 years) has a great probiotic supplement called “Super Acidophillis” containing over 10 billion CFUs of the culture. Convenient & easy to take.

Margo on January 29, 2009 at 12:10 pm

Thanks for the healthy info! Where do you find miso soup, or Miso, whatever that is? also, where do you purchase the Kefir starter culture?

Sandra Phillips on January 30, 2009 at 4:19 pm

Miso paste is the main ingredient in miso soup. You can also add it to sauces and marinades – I like to put some in homemade salad dressings. Look for miso paste at large grocery stores or Asian markets, it will be in the refrigerated section.

Dana White on January 30, 2009 at 9:55 pm

If anyone out there has Crohn’s disease, try probiotics{everyday}I feel they have saved my life. I have a life now and before, I felt like I didn’t. Give it a try. God Bless.

Joyce Barnes on February 1, 2009 at 1:21 am

Joyce Barnes Please contact me asap regarding Crohns disease

Joyce hemming on February 1, 2009 at 9:22 pm

Very good post. Organic living has been one of the several topics about health. Many people have been concerned with healthy eating and have found probiotics to keep the body healthy. Probiotics are being used as as dietary supplements.

Krikri on March 1, 2009 at 12:43 pm

My understanding is that many yogurts are made using a probiotic but then it is killed during the final processing. The ones that have processed it in a way that preserves the probiotic should have a symbol on the package… it has the letters LAC inside of a little rectangle and mine also has the words Live and Active Cultures written next to it. I do have a question….If you cook miso or yogurt into dishes that are hot, does that kill the culture?

Susan on July 23, 2009 at 1:46 pm

Hi Susan
Great question – yes, heat will destroy most (if not all of ) the bacteria in yogurt and miso – so it's best to get your probiotics from chilled yogurt and other cultured milk products like kefir.

danawhite on July 23, 2009 at 3:22 pm

This could be due to the fact that probiotics kill off and dispose of yeast inside your body. An excellent book which explains more on this topic is The Body Ecology Diet.

helena on January 5, 2010 at 3:44 am

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