Probiotics in Yogurt

Yogurt has long been a health food that is generally simple to make and easily accessible across the globe. As a fermented dairy item, yogurt may not be appropriate for you if you're lactose intolerant. Luckily, however, probiotic soy yogurt is also available. Probiotic foods, such as yogurt, are becoming more sought-after due to the array of health benefits they provide.

What Are Probiotics?

Probioitcs are live and active microorganisms that are comparable to those present in your body. In many cases, these organisms are friendly bacteria that are naturally occurring in the human intestinal tract. Yogurt is naturally probiotic, but some vendors will include additional bacterial strains. Probiotics are also available in supplement form.

Common Cultures

The common bacterial cultures present in probiotic yogurt include bifidobacterium, lactobacilli and certain saccharomyces. A specific lactobacilli strain, L. casei, is particularly beneficial to immune response. Depending on the brand and type of yogurt you purchase, the cultures can vary and even include manufacturer-specific blends of probiotics.

Health Benefits

Probiotics may help to regulate the digestive tract, lower bad cholesterol levels, encourage weight loss and maintenance and may even aid in preventing infections, colds and the flu, although further research is necessary. Nonetheless, the evidence is promising. For example, a May 1999 study published in the journal "Immunology" found that regular consumption of probiotic yogurt boosted immunity against viruses, parasites and other pathogens in women. This was measured by an increased number of T-cells -- a type of white cell responsible for immune response. Yogurt is also naturally high in calcium due to its dairy base, which contributes to strong bones and teeth.

The Bottom Line

Probiotic yogurt is a healthy addition to a balanced diet. You should, however, avoid yogurts high in sugar; these versions generally contain added fruit. Plain, non-fat yogurt is rich in probiotics and calcium, with a minimal sugar content; it's mostly comprised of the milk sugar, lactose.