Postbiotics vs. Probiotics: What's the Difference?

When it comes to the gut microbiome, probiotics are probably the better-known term. But postbiotics are also attracting interest in nutrition research.

Although their names sound similar, probiotics and postbiotics are different. They are defined by what they contain, and researchers study them in different ways.

So, what distinguishes them, and why does the difference matter? Let's take a closer look.

What Are Probiotics?

Probiotics are live microorganisms that provide a health benefit when consumed in adequate amounts.

They are found in certain dietary supplements and foods, including some fermented foods. However, not every fermented food contains probiotics with established health benefits.

Different probiotic strains can have different properties. Their effects depend on the specific strain, dose, intended use, and available scientific evidence.

This is why the word "probiotic" alone does not tell you everything about a product.

What Are Postbiotics?

Postbiotics are preparations of inanimate microorganisms and/or their components that provide a health benefit.

Unlike probiotics, postbiotics do not need to contain live microorganisms. Their properties depend on the microorganisms used, how they are prepared, and the components present.

Some preparations also contain substances associated with fermentation. However, not every fermentation-derived compound or nonliving microbial ingredient qualifies as a postbiotic under the scientific definition.

Understanding these distinctions helps explain why postbiotics are becoming a subject of interest in food science and nutrition research.

Postbiotics vs. Probiotics: The Main Differences

Neither category is automatically better than the other. The most relevant factors are the specific ingredient, the intended application, and the quality of the scientific evidence.

Why Does This Difference Matter?

One important distinction is how the ingredients are handled during manufacturing and storage.

Some probiotic microorganisms are sensitive to heat, moisture, and other environmental conditions. Depending on the strain and product, special processing and storage conditions may be needed to maintain their viability.

Postbiotics do not require living microorganisms to remain alive. This can offer different formulation options for certain foods and beverages.

However, this does not mean postbiotics are automatically more stable or suitable for every product. Heat and other processing conditions can still affect their components and properties.

Manufacturers must evaluate each ingredient under the conditions in which it will be produced, stored, and consumed.

Are Postbiotics Better Than Probiotics?

Not necessarily. Postbiotics and probiotics are different categories of ingredients, and they should not be treated as interchangeable.

Some probiotic strains have been studied extensively for specific applications, while research on postbiotics varies depending on the preparation being investigated.

The evidence for one strain or preparation cannot automatically be applied to another. A product's ingredients, formulation, intended use, and supporting research all matter.

Rather than assuming that one category is superior, it is more useful to understand what each contains and what research has established about the particular ingredient.

Can You Take Probiotics and Postbiotics Together?

Probiotics and postbiotics are not inherently mutually exclusive. Some products may include multiple types of ingredients, depending on their formulation.

However, combining more ingredients does not automatically make a product more effective or appropriate for everyone.

When comparing products, consider the ingredient list, the amount of each ingredient, the manufacturer's information, and the evidence supporting the specific formulation.

If you are considering supplements for a particular health concern, a qualified healthcare professional can help you evaluate your options.

Why Are Postbiotics Being Explored for Functional Beverages?

Functional beverages are products developed with ingredients beyond those traditionally used for flavor, aroma, or basic nutrition.

Coffee is one example of a beverage that manufacturers may explore when developing products with additional ingredients. However, the suitability of any ingredient depends on its properties and the finished product's formulation.

For probiotic ingredients, maintaining the viability of live microorganisms can be an important consideration, particularly in products exposed to heat.

Postbiotic preparations do not require live microorganisms to survive, but their compatibility with hot beverages must still be evaluated. Manufacturers need to consider processing conditions, storage stability, and the properties of the specific preparation.

It is also important to distinguish between a beverage containing a verified postbiotic ingredient and one made with other functional ingredients. These are not the same thing.

At Grateful Earth Coffee, our focus is on bringing together coffee and thoughtfully selected ingredients in convenient, flavorful blends. Readers interested in our approach to coffee can explore our existing articles about mushroom coffee and its ingredients.

Final Thoughts

Probiotics and postbiotics are distinct categories within the broader field of microbiome science.

Probiotics contain live microorganisms, while postbiotics consist of preparations of inanimate microorganisms and/or their components that meet the scientific definition.

Both are subjects of research, but their properties and potential applications depend on the specific ingredients and the evidence available.

As research continues, understanding these differences can help consumers make more informed decisions when reading product labels and exploring functional foods and beverages.

Explore More About Coffee Ingredients

Curious about the ingredients found in functional coffee? Explore the Grateful Earth Coffee collection and learn more about the ingredients in our blends.