What Is the Difference Between a Prebiotic and a Probiotic?
Redaktion
The term prebiotic refers to fibre-rich dietary supplements that specifically support the gut bacteria and thus help to maintain a healthy gut flora. Probiotics, on the other hand, are the bacterial strains known for their health-promoting effects, which are taken in the form of capsules or powder, for example, or added to food.
More than 1 kilogram of bacteria live in our large intestine, without which we could not survive. A supply of prebiotics supports the healthy gut flora in order to avoid the complaints associated with its disruption. According to the publication by Gibson and Roberfroid in 1995, prebiotics are defined as non-digestible food ingredients that have a beneficial effect on their host. These foods, mostly consisting of dietary fibre, selectively promote the growth and thus also the activity of one or more bacterial strains in the large intestine. As a result, the health of the host improves.
Prebiotics vs. probiotics: the difference and their effects on gut health
In recent years, interest in a healthy gut flora and its effects on human health and well-being has grown strongly. The terms prebiotics and probiotics are being heard more and more often. Although they sound similar, they have different meanings and play different roles in maintaining a healthy gut flora. In this article, we explain the difference between prebiotics and probiotics and take a closer look at their effects on gut health.
1. Prebiotics:
Prebiotics are certain types of foods or nutrients that are fermented by the beneficial bacteria in the gut. They serve as food for these bacteria and support their growth and activity. Essentially, prebiotics are non-digestible fibres that pass through the gut without being broken down by digestive enzymes. Instead, they reach the large intestine, where they are fermented by certain bacterial strains.
The main purpose of prebiotics is to promote the growth and activity of healthy gut bacteria such as bifidobacteria and lactobacilli. By feeding these beneficial bacteria, prebiotics help to maintain a healthy balance of the gut flora. The most common prebiotics include fructo-oligosaccharides (FOS), inulin, galacto-oligosaccharides (GOS) and resistant starch.
2. Probiotics:
In contrast to prebiotics, probiotics are live microorganisms that are consumed in sufficient quantities to have positive effects on the gut flora and the health of the host. These live microorganisms are usually specific strains of bacteria or yeasts that occur naturally in the gut or are contained in special dietary supplements and probiotic products.
Consuming probiotics can help to restore or maintain the balance of the gut flora, particularly after antibiotic treatment or other events that can lead to a disruption of the gut flora. Probiotics may also have anti-inflammatory and immunomodulatory properties and improve digestive function.
It is important to note that not all bacterial strains are considered probiotics. Scientific research has identified specific strains that can offer specific health benefits, such as Lactobacillus acidophilus, Bifidobacterium bifidum, Lactobacillus rhamnosus and Saccharomyces boulardii.
Interaction between prebiotics and probiotics:
There is a close relationship between prebiotics and probiotics. Prebiotics serve as a source of food for the probiotics in the gut. By promoting the growth and activity of probiotic bacteria, prebiotics can improve the colonising abilities of probiotics and increase their survival in the digestive tract.
This synergistic relationship between prebiotics and probiotics is known as the synbiotic effect. Taking prebiotics and probiotics at the same time can enhance the positive effects on gut health.
Both prebiotics and probiotics play an important role in maintaining a healthy gut flora and promoting gut health. Prebiotics serve as food for beneficial bacteria in the gut and support their growth and activity. Probiotics are live microorganisms that can improve the balance of the gut flora and have positive effects on digestion and the immune system.
The combination of prebiotics and probiotics, known as the synbiotic approach, can offer synergistic benefits and enhance the positive effects on gut health. Regular consumption of prebiotics and probiotics can help to support the balance of the gut flora and promote general health and well-being.
However, it is important to note that the effects of prebiotics and probiotics can vary from person to person. It is recommended to discuss individual needs and possible health concerns with a doctor or nutrition professional to ensure the correct use of prebiotics and probiotics.
Photo by Maarten van den Heuvel from Pexels
Research into the gut flora has yielded astonishing insights into its functions and effects on the organism in recent years. It is becoming increasingly clear that the gut flora plays a key role in human survival and health. Here are some well-known facts from nutritional medicine and surprising new discoveries
1. Help with the absorption of food from the intestinal lumen:
The gut flora supports the digestion and absorption of nutrients from food. It breaks down complex carbohydrates, dietary fibre and other substances that cannot be completely digested by the human digestive system. Through their enzymatic activity, the gut bacteria convert these substances into compounds that humans can use.
2. Production of vitamin K2:
Another important contribution of the gut flora is the production of vitamin K2, also known as menaquinone. This vitamin plays a crucial role in blood clotting. Although the main source of vitamin K in our diet is green plants, the gut flora may be able to cover part of our requirement. However, the exact amount produced by the gut flora is still the subject of research.
3. Blood groups and bacterial composition:
It has been found that certain bacterial strains are associated with the different blood groups. This relationship between blood groups and bacteria may have played an important role in the evolution of mammals. It is suspected that different blood groups may offer different advantages in fighting infections.
4. Immune system modulation and protective function:
The gut flora has a crucial function in modulating the immune system. It helps to maintain the balance between inflammatory and anti-inflammatory processes and protects the gut from the spread of pathogenic bacteria and fungi. A healthy microbiome can thus strengthen immune function and reduce the risk of inflammatory diseases.
5. Link with type 2 diabetes mellitus:
Research shows that the composition of the gut flora may play a role in the development of type 2 diabetes mellitus. A disturbed microbiome can lead to increased insulin resistance, which can lead to raised blood glucose levels and ultimately to diabetes. Targeted modulation of the gut flora could therefore be a promising therapeutic strategy for the prevention and treatment of diabetes.
6. Link between irritable bowel syndrome, depression and gut bacteria:
A connection has been found between irritable bowel syndrome, a common bowel disorder, and the development of depression. A disturbed gut flora and bacterial overgrowth in the gut can lead to an increased inflammatory response, which has a negative effect on mood and mental well-being. Research into these connections is opening up new avenues for treating mental illness by specifically influencing the gut flora.
These findings illustrate the many functions of the gut flora and its importance for human health. Research into the gut microbiota is opening up new perspectives for the prevention and treatment of various diseases. It remains exciting to see how future research findings will help to deepen our understanding of gut health and develop innovative treatment approaches.
