Fungi are a natural part of our environment and even our bodies. In a healthy microbiome—the totality of all microorganisms in the body—they usually coexist peacefully with bacteria and other microbes. But under certain circumstances, this balance can tip: Fungal overgrowth occurs, which can cause various symptoms and even serious health problems. Many people suffer from fungi in their bodies without knowing it. The symptoms are often nonspecific, misinterpreted, or even not recognized at all.
In this article, you'll learn how fungal overgrowth occurs in the body, what typical symptoms are, what risk factors play a role, and—most importantly— what you can actively do to combat it . A special focus is placed on natural measures such as diet and the use of probiotics , which can play a key role in combating and preventing fungal infections.
What are fungi in the body?
Fungi are a distinct group of microorganisms. Among the best-known examples are yeasts (such as Candida albicans ) and molds . While some fungi are harmless or even beneficial, others can become pathogenic under certain conditions.
In the human body, fungal infections occur mainly in the following forms:
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Yeast infections (e.g. Candida): often in the intestines, genital area, skin or mouth.
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Skin fungus ( dermatophytosis ): typically between toes, on the feet or in skin folds.
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Nail fungus ( onychomycosis ): affects toenails or fingernails.
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Systemic mycoses : dangerous fungal infections that can spread throughout the body – usually only in cases of severely weakened immune systems.
Causes of fungal overgrowth in the body
For fungi to spread in the body, certain favorable factors must be present. Here are some of the most common:
Weakened immune system
An intact immune system usually keeps fungi in check. However, if it becomes weakened—due to chronic stress, illness, medication, or an unhealthy lifestyle—it can proliferate excessively.
Antibiotics and other medications
Antibiotics not only destroy pathogenic bacteria, but also the beneficial intestinal bacteria. This disturbed balance paves the way for fungal growth, especially Candida.
Unhealthy diet
Sugar-rich and industrially processed foods promote fungal growth. Fungi love sugar and carbohydrates—the more of these are consumed, the easier it is for pathogenic yeasts to thrive.
Hormonal changes
Hormonal fluctuations, such as those caused by pregnancy, menstruation or hormonal contraceptives, can promote the fungal environment in the body – especially in the genital area.
Diabetes mellitus
Persistently elevated blood sugar levels create ideal conditions for fungi. A persistent fungal infection is often the first warning sign of developing insulin resistance.
Typical symptoms of a fungal infection in the body
The symptoms of a fungal infection vary greatly, depending on which area of the body is affected. Some of the most common symptoms include:
Intestine and digestion
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Flatulence
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Diarrhea or constipation
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Cravings for sweets
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Tiredness after eating
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“Brain Fog”
mouth
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Whitish coating on the tongue (thrush)
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Burning or pain when swallowing
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Bad taste in the mouth
Skin and nails
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itching
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Redness
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Scaly, weeping skin patches
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Discolored, brittle nails
genital area
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Itching, discharge (in women)
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Burning when urinating
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Pain during sexual intercourse
General symptoms
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Chronic fatigue
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Concentration problems
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irritability
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Depression or anxiety
Diagnosis: How do you recognize fungi in the body?
Diagnosis is usually made through a combination of:
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History : complaints, diet, medication use.
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Stool examination : if Candida overgrowth in the intestine is suspected.
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Swab or culture : for skin, nail or genital fungus.
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Blood test : in severe cases or when systemic infections are suspected.
An experienced naturopath or doctor can conduct appropriate tests to determine whether an imbalance exists and which fungi are involved. A self-test can also provide initial information about whether a fungal infection is present.
What to do about fungi in the body? – Holistic approaches to treatment
1. Change your diet
The basis of any successful fungal treatment is a consistent change in diet – at least for a few weeks:
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Avoid sugar and white flour products.
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Avoid alcoholic beverages, especially beer and wine.
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Reduce starchy foods (e.g. potatoes, rice, pasta).
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Prefer a high-fiber diet with lots of vegetables, nuts, seeds, and fermented foods.
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Use natural antifungals such as coconut oil , garlic , oregano oil or turmeric .
This so-called anti-fungal diet deprives the fungi of their basis for life – sugar – and at the same time supports healthy intestinal bacteria.
2. Probiotics against fungi: Building a healthy intestinal flora
A central component in the treatment of fungal infections – especially in the intestines – is the targeted intake of probiotics .
Probiotics are live microorganisms, mostly lactic acid bacteria such as Lactobacillus and Bifidobacterium , that help the body restore a healthy balance in the intestines.
Mechanisms of action of probiotics:
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Displacement of Candida by occupying docking sites in the intestinal mucosa.
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Production of antimicrobial substances that inhibit fungi.
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Strengthening the intestinal mucosa and reducing inflammation.
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Improving the immune system by stimulating certain immune cells.
Which probiotics are particularly suitable?
Not all probiotics are equally effective against fungi. Particularly helpful are:
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Lactobacillus rhamnosus
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Lactobacillus reuteri
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Saccharomyces boulardii – a probiotic yeast that competes with Candida
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Bifidobacterium lactis
Tip : Combine probiotic supplements with prebiotics (e.g. inulin, resistant starch) to promote the growth of “good” intestinal bacteria.
3. Antifungal agents (antifungals)
In severe cases or with long-lasting infections, the targeted use of antifungals is advisable. These are available in various forms:
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Topical applications : creams, ointments, suppositories.
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Oral medications : for systemic or internal infections.
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Herbal alternatives : e.g. caprylic acid (from coconut oil), grapefruit seed extract, oregano oil – well tolerated and antifungal.
Conventional medical treatment is necessary for some infections, but should ideally be supplemented by a holistic strategy (including probiotics and nutrition) to prevent relapses.
4. Detoxification and liver support
The decomposition of mushrooms produces toxins that must be eliminated through the liver, kidneys, and intestines. Targeted detoxification can help alleviate typical initial symptoms .
Recommended measures:
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Drink plenty of water
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Bitter substances (e.g. milk thistle, dandelion) to support the liver
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Healing clay or zeolite to bind toxins in the intestine
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Sufficient exercise and sweating (e.g. through sauna)
How long does it take to treat fungi in the body?
The duration depends on the severity of the infection and the individual response. A course of treatment for intestinal Candida, for example, usually lasts between 6 and 12 weeks . It's important to continue implementing all steps consistently—even if symptoms improve in the meantime.
Prevention: How to sustainably prevent fungal infections
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Make sure you eat a balanced diet with little sugar.
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Always take probiotics alongside antibiotics.
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Avoid excessive intimate hygiene with aggressive washing lotions.
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Wear breathable clothing and dry skin folds thoroughly.
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Strengthen your immune system through sleep, exercise and stress reduction.
Conclusion: Fungi in the body are treatable – holistically and naturally
Fungal infections in the body are widespread but often go undetected. Whether in the intestines, on the skin, or in the genital area – fungal overgrowth can cause numerous problems. The good news: With the right strategy, fungi can be effectively combated .
A combination of a sugar-free diet , targeted intake of probiotics , herbal remedies, and—if necessary—conventional medications offers the best chance of success. Restoring a healthy intestinal flora is particularly important for long-term symptom-free survival.
If you feel like you're suffering from fungal overgrowth, it's never too late to take action. The body has an amazing ability to regenerate—provided you give it the right tools.
