Acidophilus is a bacteria which lives in the digestive system and can help promote a healthy stomach and intestine. It can also ensure a healthy amount of bacteria to help prevent bacterial imbalances in the body, such as yeast infections in women. To tell us more about acidophilus, the Wellness Advisor spoke to Rachel Agnew, our Food and Nutrition Expert.

Wellness Advisor: What is acidophilus?

Rachel Agnew: Lactobacillus acidophilus (L. acidophilus), are a varied group of bacteria that are normal inhabitants of the human intestine and vagina. They are commonly referred to as `good` or `friendly` bacteria because they can help maintain a healthy gastrointestinal (GI) tract and may play a role in stimulating the immune system. These bacteria are often termed probiotics because regular consumption has been linked to a variety of health benefits. L. acidophilus can be found in fermented dairy products or as a supplement. L. acidophilus supplements are sold in powders, tablets and capsules. Deficiency or reduction of L. acidophilus can occur in persons using antibiotic medications, as well as intestinal infections, diarrhea and toxins in the GI tract.

Wellness Advisor: What can acidophilus help with?

Rachel Agnew: The GI tract plays a major role in a person’s nutritional well-being and immune function. Maintaining healthy concentrations of good bacteria may help displace disease promoting bacteria and yeast, promote proper digestion, and improve the availability of some dietary nutrients. L. acidophilus and other probiotics are linked to various health benefits. L. acidophilus is generally indicated to help manage GI problems including antibiotic-induced diarrhea, viral diarrhea, lactose intolerance, and inflammatory bowel disease.

WA: I`ve heard that acidophilus can prevent vaginal yeast infections. Is that true?

Agnew: There is some evidence to support the ingestion of probiotics to fight vaginal yeast infections. L. acidophilus can inhibit or retard the growth of many bacteria including Candida albicans, the major yeast involved in vaginal yeast infections. A 1996 review in the Journal of the American Medical Association states there is evidence for L. acidophilus in the prevention of Candida vaginitis. However, the use of probiotics for the treatment of any disorder should be medically supervised.

WA: How much acidophilus do I need for it to be effective?

Agnew: About one to ten billion live bacteria are required for effectiveness. This information, as well as the type of bacteria, should be listed on the label of the product. It is important to read storage instructions on the label because some L. acidophilus supplements require refrigeration.

WA: When should I take acidophilus? Can I take it when I have an upset stomach?

Agnew: There are no strict guidelines for dosage intake. Probiotics should be consumed at least a few times a week to maintain their effect on GI health. Probiotic supplements are generally recommended for GI upset but individuals should consult with their healthcare professional prior to consumption, especially those with severe GI ailments such as Crohn’s disease.