NewsDigestion

Probiotics, Prebiotics and Fermented Foods: A Simple Guide for Indian Kitchens

Team Niroza22 Oct 20264 min read

"Gut health" is everywhere now, and so are products promising good bacteria. But what are probiotics and prebiotics, really? And does your dahi count? Here's a plain guide.

Probiotics

The US National Institutes of Health (NIH) describes probiotics as live microorganisms, like certain bacteria and yeasts, that may be good for your health when you eat or drink them. Yogurt, for example, is made by adding live cultures.

The NIH also warns that not every food or supplement labelled "probiotic" has proven health benefits.

Prebiotics

Prebiotics are types of fibre that the friendly bacteria in your gut feed on. You'll find them in everyday foods like onions, garlic, bananas, whole grains and pulses.

What about Indian fermented foods?

  • Dahi and chaas made from live cultures contain living microbes.
  • Idli, dosa and dhokla start with fermented batter, but then they're steamed or cooked. The NIH says heating food after fermenting it kills the microbes, so these don't count as probiotics. They're still lovely, nourishing food.
  • Kanji and other traditional ferments contain microbes that, like those in many fermented foods, haven't been studied much.

What research says about probiotic supplements

  • Certain strains might lower the chance of diarrhoea caused by antibiotics in people under 65.
  • For irritable bowel syndrome, probiotics might ease symptoms, but it depends on the strain, how long you take them and the symptom.
  • For lots of other uses, the evidence is mixed or thin.
  • The strain matters more than a big number on the pack. A higher CFU count doesn't automatically mean more benefit.

Who should be careful

Probiotics rarely cause problems in healthy people, though they can cause gas. The NIH says people who are seriously ill or have weak immune systems may be at risk of infection, and that probiotics have caused serious illness in premature babies. In these cases, ask a doctor first, including which one, how much and for how long.

Simple ways to look after your gut

  • A bowl of fresh dahi or a glass of chaas with meals
  • Plenty of fibre from dal, vegetables, fruit and whole grains. See how much you need.
  • Lots of variety on your plate across the week

A gut-friendly day, Indian style

You don't need special products to get both probiotics and prebiotics. Fresh dahi and chaas bring live cultures, while onions, bananas, whole grains and pulses bring the fibre those microbes feed on. Here's what a simple day could look like:

  • Breakfast: vegetable poha with onions, and a banana
  • Lunch: whole wheat roti, dal, a seasonal sabzi, an onion salad and a bowl of fresh dahi
  • Snack: a handful of roasted chana
  • Dinner: vegetable khichdi with a glass of chaas

Reading a probiotic supplement label

If your doctor suggests a supplement, the label can tell you a lot. Here's what the NIH suggests checking:

  • The full name. Probiotics are named by genus, species and strain. Look for all three, not just a word like "Lactobacillus".
  • When the CFU was counted. The NIH suggests choosing products that list the CFU at the end of shelf life, not at the time they were made.
  • Use-by date and storage. Some probiotics need the fridge, while others are fine at room temperature. Follow the label.

The short version

  • Probiotics are live microbes; prebiotics are the fibre they eat.
  • Fresh dahi has live cultures; cooked idli and dosa don't.
  • For supplements, the exact strain matters, and some people should ask a doctor first.

Picking a digestive product you can trust

Walk into any chemist and you'll find shelves of churans, powders and tablets for the tummy. Every pack seems to claim it's the best. Instead of trusting the front of the box, check the back:

  • Does it say "NOT FOR MEDICINAL USE"? FSSAI rules ask nutraceutical labels to say this.
  • Is there a clear "Recommended usage" line?
  • Does it name every ingredient and how much of each is in a serving?
  • Does it avoid promising a cure? Disease claims aren't allowed on these labels.

Whether you're after the best nutraceutical brand in India or a simple Ayurvedic wellness brand in India, these checks work the same way.

This post is for general information, not medical advice.

Sources

  1. Probiotics: Fact Sheet for Consumers, NIH Office of Dietary Supplements
  2. Probiotics: Fact Sheet for Health Professionals, NIH Office of Dietary Supplements
  3. Nutraceuticals: labelling compliances under FSSAI, S.S. Rana & Co.