Building up gut flora step by step
Persistent diarrhoea and constipation can be signs of imbalanced gut flora. How important is a healthy gut – and when does a gut cleanse make sense?
Key points at a glance
- The gut has a major influence on our immune system, metabolism and psyche. Healthy gut flora has an anti-inflammatory effect and can even alleviate symptoms of depression.
- Signs of imbalanced gut flora include digestive problems or a susceptibility to infection. And it can exacerbate chronic diseases and autoimmune conditions.
- In complementary medicine, gut cleansing is understood to mean a holistic change in diet, lifestyle and stress management, rather than aggressive colonic irrigation.
- Invasive colon cleansing can damage the microbiome and is usually not recommended. Instead, targeted and individual lifestyle adjustments are considered more beneficial.
- A gut-friendly lifestyle involves high-fibre, minimally processed and fermented foods, three meals a day without snacks, and a reduced intake of sugar, processed foods, meat and alcohol.
It is often said that health starts in the gut. And it is true that the gut plays a key role in our immune system, metabolism and general well-being.
So it seems logical to consider gut cleansing if you have symptoms. But how useful is it – and are there any potential risks?
How important is healthy gut flora?
The bacteria in our gut train our immune system and ensure that the intestinal lining remains intact. They also support digestion and metabolism and produce short-chain fatty acids, which have an anti-inflammatory effect in the body.
We now also know that people with a healthy microbiome often have better mental well-being. “Some studies in psychiatry into the effect of probiotics – that is, lactic acid bacteria – show positive effects on the gut flora,” explains Sarah Müllhaupt, a natural health practitioner based in Zurich.
“It was found that the cognitive reactivity of patients in the probiotic test group decreased more than that of patients in the placebo group.” In psychology, cognitive reactivity describes how strongly negative thoughts are triggered by a sad mood.
How do you know if your gut flora is out of balance?
Imbalanced gut flora can manifest through a range of symptoms, including:
- Constipation
- Flatulence
- Diarrhoea
- Irritable bowel syndrome
- Greater susceptibility to infections and allergies
However, imbalanced gut flora can also exacerbate chronic conditions such as neurodermatitis, asthma, multiple sclerosis, Hashimoto’s disease and other autoimmune diseases.
“When people understand how their gut influences their health and what might be disrupting it, making changes is often much easier.”
What is gut cleansing?
In complementary medicine, gut cleansing is understood to mean a holistic analysis and comprehensive lifestyle change rather than a short, invasive treatment to completely flush out the bowels.
It always involves analysing your sleep, diet, exercise, stress management and, above all, understanding what changes need to be made and why. “When people understand how their gut influences their health and what might be disrupting it, making chances is often much easier,” says Sara Müllhaupt.
Each one of us carries an impressive 1.5 kg of bacteria around with us – mostly in our gut. The mix of useful and harmful bacteria is as individual as our fingerprints. For optimum gastrointestinal health, we need a good balance – a peaceful coexistence – between the more than 450 different types of bacteria that live in the gut. They produce important vitamins and protect the body against harmful substances and pathogens.
What’s more, the gut is an important part of our immune system – and the site of our abdominal brain. This complex network of nerves monitors the entire digestive tract from the oesophagus to the anus. It works closely with the central nervous system in the brain, which controls most of our bodily functions.
When does a gut cleanse make sense?
If you often suffer from digestive issues, feel constantly tired or notice that your gut is out of balance after a course of antibiotics, you should consider a microbiome test.
“If this test clearly shows a high level of colonisation and many putrefactive germs, or if harmful bacteria become established, a gut cleanse makes sense,” says Müllhaupt.
What are the risks?
Some highly invasive methods, such as colonic irrigation, pharmacy products or colon hydrotherapy, involve flushing out the gut. These measures reduce the microbiome, destroy its biodiversity and flush out beneficial bacteria.
In most cases, these methods aren’t recommended, because they can cause toxins that the gut has already bound in the faeces to be released again. A gentler way to reset your gut is to adopt a balanced, largely plant-based diet, get sufficient sleep and lower your stress levels.
Video: Intestinal rehabilitation – sensible or not?
Building up gut flora step by step
First, a detailed medical history is taken to clarify which disruptive factors may be affecting digestion:
- Is the digestive system working properly?
- What is the person’s lifestyle, family situation, stress levels?
- Are there any medical conditions?
- Does the person take medication regularly?
All these factors have a major impact on gut health and the microbiome.
The next steps are individual and should be discussed with a medical specialist. Some patients only need to incorporate more plant-based foods into their diet, while others need to completely change what they eat.
What are the benefits of a microbiome analysis?
According to the University Hospital Zurich, conventional medicine often has little use for microbiome analyses, because science is unable to derive any specific recommendations for action from them. According to this, a microbiome analysis of bowel movements is only a snapshot that is influenced by many factors.
However, Müllhaupt takes a different view: “The core microbiome fingerprint is highly individual and relatively stable, similar to a standard fingerprint.” Antibiotics or severe diarrhoea can cause it to change quickly and dramatically.
Even so, the microbiome doesn’t change completely from one day to the next. “This means that a microbiome analysis can still provide valuable insights,” explains Müllhaupt.
For example, it can reveal how the intestinal lining is doing in general, whether there’s any inflammation or whether the lining is properly sealed. It can also show whether your microbiome has a diverse range of bacteria, whether there are too many harmful bacteria or a lack of good bacteria.
Each patient receives individual recommendations based on these results and the information they provide on their lifestyle and general health. Measures are wide-ranging, taking in everything from breathing exercises and changes in diet to dietary supplements.
Gut-friendly foods
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Dos: which foods should I eat?
High-fibre, prebiotic foods:
“Dietary fibre provides the good bacteria with a lot of nutrition. So you should eat a good variety of foods that are as natural and unprocessed as possible,” says Müllhaupt.
- Finely crushed cereal grains such as oat flakes and wheat bran
- Cooled, cooked potatoes and rice
- Quinoa
- Broccoli
- Chicory
- Artichokes (particularly rich in prebiotic dietary fibre)
- Jerusalem artichokes (rich in inulin, prebiotic)
- Apples (with the skin)
- Berries (raspberries, blueberries)
- Bananas (slightly green = more resistant starch)
- Plums
Probiotic foods:
“Fermented food is good for the gut. Ideally, you should eat two different types of fermented foods a day. They contain lactic acid bacteria and support bacterial diversity,” says Müllhaupt. These include:
- Kefir
- Sauerkraut (raw, unpasteurised)
- Kimchi
- Miso
- Tempeh
- Kombucha
- Chicory
- Leeks
- Asparagus
It is also important to drink plenty of fluids, because the gut needs a sufficient intake to stay healthy. It’s best to drink water, unsweetened herbal tea or vegetable broth. Drinking helps the intestines to detoxify and digest.
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Don’ts: what foods should I avoid?
Too much sugar, ready meals or too much meat damage the gut over the medium to long term.
Sugary, processed foods:
- All kinds of sweet treats, cakes, biscuits
- Soft drinks and sweetened drinks
- Breakfast products containing a lot of sugar
- Chips and salty snacks
Foods with a lot of additives
- Fast food: burgers, chips, anything fried
- Processed meat; salami, sausages, bacon
Alcohol should also only be enjoyed in moderation. Too much alcohol damages both the gut flora and intestinal lining.
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Sample daily meal plan
Breakfast: Oats with linseeds and chia seeds, blueberries, natural yoghurt and cinnamon
Lunch: Sweet potato curry with spinach, chickpeas and turmeric
Dinner: Roasted broccoli and cauliflower with quinoa and a tahini-lemon dressing.
What support does health insurance offer when it comes to gut health?
As a general rule, basic insurance covers costs in the event of illness, accident or maternity. Supplementary insurance closes important gaps that are not covered or only partly covered by basic insurance, such as alternative medicine, nutrition advice or microbiome analyses.
Frequent questions on gut cleansing
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How long does a gut cleanse take?
It varies greatly from person to person. Depending on the starting point, a gut cleanse ranges from fine-tuning to a complete lifestyle overhaul. The intestinal lining can recover quickly, but it often takes much longer for the bacterial diversity to rebuild. On average, you can expect a gut cleanse to take three to six months.
However, this also depends on the extent to which you adjust your diet and lifestyle. In addition to the right diet, the frequency of meals – in other words, how often you eat – is also important for the microbiome.
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What’s the biggest mistake you can make when doing a gut cleanse?
“Many people underestimate the effect that snacking has on their gut health. If you’re always eating between meals, this stimulates the gut, so it works constantly and becomes overstimulated,” explains Müllhaupt. It is recommended that you eat three meals a day with a gap of four hours between each meal.
Ideally, you shouldn’t eat anything four hours before going to bed. “If food isn’t digested properly, this can also have a negative impact on the quality of your sleep. This can cause putrefaction. When you sleep, your energy goes into regeneration and cell renewal, not digestion,” explains the natural health practitioner.
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Can a gut detox help me lose weight?
Weight loss is not the main goal of a gut detox. However, it may boost the metabolism for a short time. Often, it helps to take the focus away from the constant stress of dieting,
because stress slows the metabolism. Instead, focusing on a healthy diet, reduced stress and a stable microbiome can help the body regulate weight naturally.