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French pharmacy
What is the microbiota and why is it important for health?
The microbiota, also known as the intestinal flora, refers to all the micro-organisms (bacteria, viruses, non-pathogenic fungi) that reside in our digestive system. These organisms play a crucial role in many aspects of health, including the digestion of food, the production of certain vitamins (such as vitamin K and some B vitamins), protection against pathogens and support of the immune system. A balanced microbiota is essential for maintaining the integrity of the intestinal barrier, preventing inflammation and autoimmune disease.
How can we naturally stimulate the microbiota?
1. Eat a diet rich in fiber
Dietary fiber, found in fruits, vegetables, legumes and whole grains, is essential for nourishing the microbiota. Fiber is not digested by the human gut but is fermented by intestinal bacteria, producing short-chain fatty acids beneficial to intestinal health.
2. Incorporate probiotics into your diet
Probiotics are living micro-organisms which, when ingested in adequate quantities, confer a health benefit on the host. Fermented foods such as yogurt, kefir, sauerkraut and kimchi are excellent sources of probiotics that help enrich our microbiota.
3. Limit ultra-processed foods
Ultra-processed foods are often rich in sugars, saturated fats and additives, while being low in essential nutrients. These foods can upset the balance of the microbiota and encourage the growth of harmful bacteria.
4. Maintain good hydration
Water plays a key role in the health of the microbiota, helping to maintain the intestinal mucosa and facilitating the transit of fiber through the digestive system, enabling better fermentation by beneficial bacteria.
5. Regular physical activity
Regular exercise can also have a positive influence on the composition and activity of the microbiota. It helps reduce inflammation and improves intestinal movement, creating a favorable environment for beneficial bacterial growth.
What are the signs of microbiota imbalance?
An unbalanced microbiota can manifest itself through a variety of symptoms, including digestive disorders such as constipation, diarrhea, bloating, abdominal pain, as well as increased susceptibility to infections and possibly allergic reactions or autoimmune disorders. If you experience such symptoms, it's advisable to consult a healthcare professional, who may recommend a more thorough examination and possibly an adjustment to your diet or the use of probiotic supplements.
Which probiotics are best for stimulating the microbiota?
Specificprobiotics recommended for stimulating the microbiota include lactobacilli, bifidobacteria and certain types of yeast such as Saccharomyces boulardii. These strains have been widely studied and have demonstrated benefits for intestinal and general health. For a choice tailored to your personal needs, we suggest consulting a healthcare professional who can recommend a product containing probiotic strains that match your specific conditions.
How do prebiotics work to support the microbiota?
Prebiotics are non-digestible compounds, mainly fibers, that nourish beneficial intestinal bacteria. By fermenting in the large intestine, prebiotics promote the growth and activity of healthy bacteria such as bifidobacteria and lactobacilli. Foods rich in prebiotics include garlic, onions, leeks, asparagus and bananas. Incorporating these foods into your daily diet can help maintain a healthy microbiota balance.
Can medication alter the microbiota?
Certain medications, notably antibiotics, can disrupt the intestinal microbiota. Antibiotics, while effective in eliminating bacterial infections, can also reduce the diversity of beneficial bacteria in the gut. Other drugs such as non-steroidal anti-inflammatory drugs (NSAIDs) and certain antacids can also affect the microbiota. It's important to discuss with your doctor how to protect your microbiota if you must take these medications.
What is the link between microbiota and chronic disease?
Research shows that imbalances in the microbiota may be linked to several chronic diseases, including inflammatory bowel diseasesinflammatory bowel diseases (such as Crohn's disease and ulcerative colitis), type 2 diabetes, obesity, and even certain neurological diseases such as Alzheimer's disease. Modulating the microbiota through diet, probiotics and lifestyle changes can play a role in preventing and managing these diseases.
How does stress affect the intestinal microbiota?
Stress can have a significant impact on the gut microbiota. Chronic stress, in particular, can upset the balance of intestinal bacteria, increasing the proportion of bacteria that can cause inflammation and decreasing beneficial bacteria. This can lead to an increase in intestinal permeability, often referred to as "leaky gut", which can exacerbate inflammatory and immune responses throughout the body. Stress management through relaxation techniques, good sleep hygiene and physical activity can help maintain a healthy microbiota.
