What is a probiotic?
Probiotics are "good" bacteria that live in our bodies or are consumed as supplements, and contribute to maintaining a balance of intestinal flora. Their effect is based on genetic and immunological compatibility with the human body, and includes strengthening the immune system, improving digestive function, regulating mood, and more.
The main areas of influence studied
🌱 1. Digestive system
Most studies focus on treating irritable bowel syndrome (IBS), gas, bloating, diarrhea, and constipation. Strains such as Lactobacillus acidophilus , Bifidobacterium infantis , and Saccharomyces boulardii have been found to have the ability to reduce symptoms, especially when used continuously for 4–8 weeks.
🛡️ 2. The Immune System
Probiotic consumption has been linked to a reduced incidence of respiratory tract infections, reduced exacerbations of intestinal infections, and enhanced immune responses in children and adults. Certain strains enhance both innate and adaptive immune system function.
🧠 3. Mood, anxiety and depression
The gut microbiome communicates with the nervous system through the “gut-brain axis.” Certain probiotic supplements have been shown to affect anxiety levels, sleep quality, and symptoms of mild depression, especially when there is gastrointestinal sensitivity.
🩺 4. Strengthening in chronic medical conditions
In patients with type 2 diabetes, probiotic supplements have been shown to help reduce blood sugar levels and inflammatory markers such as CRP. In patients with inflammatory bowel disease (such as colitis or Crohn's), probiotic use supports maintenance of remission and reduces symptom recurrence.
Other possible effects:
-
Improvement in cholesterol levels (LDL and HDL)
-
Reducing allergy symptoms
-
Encouraging calcium absorption and bone health
Limitations to be aware of
Not every probiotic strain is suitable for every person. Studies show substantial differences between different strains, in the individual response of the user, and in the length of exposure required to achieve an effect. Also, the effect of the supplement is not immediate – it will usually be felt after 2–4 weeks.
Recommendations for proper use
-
It is recommended to choose a probiotic product with a specific and precise strain that has undergone clinical research.
-
Pay attention to the dosage (CFU – colony-forming units), with values of 10 billion or more considered more effective.
-
Store in a cool, dry place, and take according to manufacturer's instructions.
-
People with weakened immune systems – including cancer patients, transplant patients – should consult a doctor before use.
Summary
Probiotics are not a magic solution, but in many situations they can improve quality of life, reduce symptoms, and improve physical and mental balance. Current scientific knowledge indicates promising potential in the areas of digestion, the immune system, and mental health – as long as the adjustment is made in a personalized and informed manner.