Gut Health: Probiotics vs. Prebiotics | Vital Pharmacy Supplies

Probiotics and prebiotics keep your gut bacteria healthy, but what’s the difference? We got the gut health lowdown from our pharmacist Daniel Zhou…

When it comes to gut health, it pays to eat right. The foods and nutrients we consume play a huge role in our overall health. You are essentially what you feed the trillions of bacteria that live in your gut, so it’s important to make sure that you’re feeding it correctly.

So what is good gut health?

The lining of your gut, like every surface of your body, is covered in microscopic creatures, made up mostly of bacteria. These organisms create a micro-ecosystem called the microbiome — the most dense microbe population is in your gut, where they play a critical role in digestion, immune function and weight regulation. 

A person has between 300 to 1,000 different species of bacteria (microorganisms) in their digestive tract. While some are harmful to our health — studies have shown that specific types of bacteria in the gut can lead to a number of health issues including low immune function, allergies, chronic illness (such as heart disease and diabetes) as well as anxiety and depression — many of them play an essential role in keeping our bodies healthy.

So, what you feed your microbiome really does have an impact on your overall health. The healthier it is, the healthier you are.

How do you maintain good gut health?

A healthy microbiome = a healthy gut. To keep your microbiome healthy you must balance out the good and the bad bacteria in your gut. Your gut bacteria absorb the types of nutrients you consume, they also have an impact on certain hormones and transmitters, and send chemical messages around your body.

If you’re eating too many processed foods for example, the bacteria in your gut can’t do its job properly because there are no nutrients to absorb, and there are no good chemicals to send to your brain, thus creating an imbalance that can lead to further health problems. The key is keeping that healthy balance.

There are two ways to maintain this balance — helping the microbes already there to grow by giving them the foods they like (prebiotic) and adding living microbes directly to your digestive system (probiotic).

What are prebiotics?

Prebiotics are classified as the non-digestible food ingredients that probiotics can feed off. They are used in the gut to increase healthy bacteria, aid digestion and enhance the production of essential vitamins.

They can be found in a variety of high fibre fruits and vegetables — particularly those containing complex carbohydrates, such as fibre and resistant starch. Your body can’t digest these carbs, so they pass through the digestive system to become food for the bacteria and other microbes.

Prebiotic foods run the gamut from asparagus to onions to bananas, cocoa and oats — the list is endless, but essentially they all mainly rich in fibre. You can find a more detailed list here, or if you’d prefer, you can always arrange a consultation with a registered dietitian who will be able to advise you on a specialised diet plan.

You can also take prebiotic supplements — they usually contain a complex carbohydrate such as fibre to stimulate the growth and activity of certain 'good' bacteria in the large intestine. You can take these orally, and many of them target specific conditions such as bone health, weight management or irritable bowel syndrome.

What are probiotics?

Probiotics are live bacteria and yeasts that are good for you, especially your digestive system. Unlike prebiotics, they contain live organisms, usually specific strains of bacteria that directly add to the population of healthy microbes in your gut.

You can find probiotics in supplements and certain foods — these are usually fermented foods such as yoghurt, sauerkraut, kombucha, kefir and kimchi. They’re thought to help restore the natural balance of bacteria in your gut (including your stomach and intestines) when it's been disrupted by an illness or treatment. A diet rich in probiotics helps to produce more of the friendly bacteria your body needs to protect itself from illness and other health issues.

Probiotic supplements also contain live organisms. A single dose may include a particular strain of microbe or blend of microbes. Like with prebiotic supplements, probiotic supplements can target specific conditions, such as irritable bowel syndrome.

Which supplements should I take?

As there so many different varieties of probiotics and prebiotics to choose from, it can be difficult to know which supplement to go for. For instance, one type of bacteria commonly used is lactobacillus. There are, however, more than 120 species of lactobacillus, and at least a dozen of them are used as probiotics. Every type of bacteria is made up of multiple species — the amount of bacteria can also differ between brands — so it’s not easy picking the right one, when there are so many different variations out there.

Our advice? Research the condition you wish to address and select the probiotic/prebiotic based on that specific health concern. It’s also worth noting that people react differently to each type of supplement, so whilst it may be successful in treating symptoms in one person, it could have a completely different reaction in someone else. As always, when considering taking supplements, talk to your health care professional first.

Here are our pharmacist, Daniel Zhou’s recommendations:

General Health

Blackmores Probiotics + Daily Health 30 Capsules - $19.99


Blackmores Probiotics+ Daily Health contains five probiotic strains providing 30 billion good bacteria, plus a prebiotic. It helps restore digestive balance and maintain digestive and intestinal health.


Life-Space have a great kids, breastfeeding, pregnancy and general probiotics range.

Women’s Health

Life-Space Women's Microflora Probiotic 60 Capsules - $29.99



To prevent vaginal thrush, we suggest Women’s Microflora Probiotic — it helps to restore the natural balance of the vaginal flora.



Digestive Health

For anyone with digestive issues and/or a low iron count, Inner Health offers a women’s energy and gut health probiotic that boosts iron levels whilst also reducing digestive complaints.

Life-Space Digestive Enzymes 60 Capsules - $26.99



Life-Space Digestive Enzymes are ideal for people who struggle with their gut health. They help the digestion of carbohydrates, lactose and fats whilst also assisting in the digestion of plant foods containing cellulose.


Inner Health IBS Control 30 Capsules



Inner Health IBS Control works to reduce and relieve gut pain, discomfort, intestinal gas and bloating as well as supporting a healthy bowel function. 



Inner Health Digestive Defence 60 Capsules - $44.99



Inner Health Digestive Defence works to support a healthy balance of good gut bacteria. Relieve digestive discomfort or symptoms of medically diagnosed Irritable Bowel Syndrome (IBS).


Immune Health


Swisse Ultibiotic Daily Immune Probiotic 30 Capsules - $15.99



Swisse Ultibiotic Daily Immune Probiotic provides daily immune support to protect against illness. These probiotics also help to reduce the severity of common cold symptoms.


Blackmores Probiotics+ Immune Defence 30 Capsules - $20.99


Blackmores Probiotics+ Immune Defence combines probiotics with zinc and vitamin C to support good bacterial growth and healthy immune function.




Life-Space Probiotic 60+ Years 60 Capsules - $32.99


Life-Space Probiotic 60+ Years helps to aid digestive issues and supports a healthy immune system for those who are over 60.




Loved our gut health guide? We've got plenty more health advice on our Health & Wellness Edit, guaranteed to give your body a well-deserved boost. Suffer with hayfever? Here's how to nip it in the bud (excuse the pun), if you suffer with joint pain, take a look at this handy guide to keeping your bones healthy and strong. 


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