A probiotic is a supplement containing live bacteria which is ingested to restore beneficial bacteria to the gut. The effectiveness of a probiotic in restoring balance varies according the various factors like dosage, strain and species. Some of these supplements contain sugar, preservatives or fillers and that is why organic probiotics are favored by health practitioners.

The gastrointestinal tract is second only to the respiratory tract in body surface area and during a normal lifetime, many tons of food pass through this canal. It harbors trillions of viable bacteria. Many factors, such as diet, climate, aging, medication, illness and stress can upset the balance of the bacteria. If the balance is incorrect this, this can negatively impact the health of the individual.

The digestive tract is lined with sites to which bacteria adhere. The idea behind using supplements is that beneficial bacteria are introduced which adhere to these sites. When the good bacteria dominate, they present a barrier against harmful bacteria.

It is not just a matter of swallowing random bacteria. Firstly, the right strain has to be used. Secondly, it has to be encased in something strong enough to survive the acid-filled stomach, but strong enough to prevent the friendly bacteria from growing in the intestines. It is also hard to assess how many viable bacteria one is getting in each dose.

A general purpose variety is available for those with no specific problems but simply wish to maintain their health and boost their immune systems. Others are designed to promote specific functions, such as those that help with constipation. Selection has to be made with the specific purpose in mind.

Research has proved that healthy bacteria are particularly useful against diarrhea associated with the use of antibiotics. However, current research is revealing that they are capable of much more than just helping with digestive problems. One of their primary functions is to stimulate the immune system.

There are many currently studies being done regarding the effect of taking these supplements on areas other than digestive health. The idea is that unfriendly bacteria could be prevented from taking hold in the first place or suppressed if already there. Childhood allergies, urinary tract infections, upper respiratory infections and lactose intolerance are just some of the areas that may benefit.

These products can be purchased from traditional health food stores and from online suppliers. When purchasing from online suppliers it is important to make sure that a reputable company is selected. There are many of these supplements available and some of them are inferior to others. The strain, species and dosage of bacteria is important as it has to survive and establish itself to be effective.

Taking organic probiotics is a safe, natural way to improve the balance in the gut. They are not some miracle overnight cure-all but when taken for a period of time, they have great health benefits. They not only benefit the digestive system but boost the immune system too. Research is beginning to show that there could in fact be many other health benefits to taking them too.