Gastro Health

Probiotics - Helpful Bacteria That Keep Our Gut Healthy

Written by
Dr. Hemalatha
and medically reviewed by Dr. Madhankumar M V

Published on Nov 01, 2016 and last reviewed on Oct 10, 2019   -  2 min read



Most of the people think that bacteria and other micro-organisms are harmful germs, but many micro-organisms help our body to function properly. Probiotics fall into this category and this article discusses the importance of probiotics.

Probiotics - Helpful Bacteria That Keep Our Gut Healthy

The definition given by the World Health Organization (WHO) for probiotics is "live micro-organisms which, when administered in adequate amounts, confer a health benefit on the host."

Probiotics are called as good and helpful bacteria. The meaning of probiotics is "for life" (pro-biota). Probiotics have been in our system right from the moment of formation of the fetus in the birth canal. Probiotics are bacteria and yeasts that are good for health, especially the digestive system to keep our gut healthy.

Availability of Probiotics

  1. Probiotics are found naturally in the body and also available as food supplements in the form of capsules, liquids, chewables, and skin creams.
  2. It is the third most commonly used dietary supplement after vitamins and minerals.

Types of Probiotics

There are many types of probiotics available. The most important and commonly used probiotics are Lactobacillus and Bifidobacterium.

  • Bifidobacterium - It is found in some dairy products and help with IBS (irritable bowel syndrome - cramping, abdominal pain, bloating, diarrhea and constipation) and other conditions.

How Do Probiotics Work?

A problem in the digestive system affects every physiological system in our body. Many toxins we are subjected to in our current environment can affect the function of the digestive system and our ability to utilize nutrients. Our gut has approximately 85 % good bacteria and 15 % bad bacteria. When the ratio gets out of balance, probiotic-rich food and supplements will help improve the ratio.

Excessive intake of antibiotics, high carbohydrate diet, non-organic meat, sugar, tap water, GMO foods (genetically-modified foods), grains, emotional stress, etc., can kill off the probiotics in our body. Over a period, the damage to the digestive tract increases the need for probiotics supplement.

Uses of Probiotics

  • It will help move food through the gut in IBS, IBD (inflammatory bowel disease - inflammation in some parts of the intestine), diarrhea, fight food-borne infections and Helicobacter pylori infection.
  • It also helps in conditions like eczema.
  • Probiotics are helpful in maintaining urogenital health and restores the balance of microflora of the vagina (yogurt is used as a folk remedy with limited support) and also helpful in urinary tract infection.
  • It can reduce the risk of certain recurrent common infectious diseases.
  • It will reduce crying time in colicky babies.
  • It is beneficial for brain function, and it improves the immunity function.
  • Lactobacillus probiotics are much useful to reduce cholesterol level (LDL - bad cholesterol) and blood pressure.
  • It also prevents allergy, cold and maintains good oral health.

Side Effects of Probiotics

Probiotics are not all alike. The effect of probiotics varies from person to person. Although some probiotic formulations have shown scientific evidence to support the uses of probiotics, for most of the conditions it is lacking. Information on long-term safety is limited. The common side effect of probiotics is diarrhea. The risk of serious side effect may be higher in people who have underlying health conditions. Though considered safe, there is a theoretical risk for people with impaired immune function.

To know more about probiotics, consult a gastroenterologist online -->

Last reviewed at:
10 Oct 2019  -  2 min read


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