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From Panic to Irritable Bowel: Candida as an Underestimated Trigger

Dear Friends of Paracelsus,

Fungi, particularly Candida, are common, silent residents of the human microbiome. As an opportunistic organism, Candida normally causes no harm; however, when regulatory balance is lost and Candida begins to overgrow, it can contribute to a wide range of chronic symptoms. The moment the immune system falters due to stress, antibiotics, hormones, or sugar, these opportunists switch from a resting state into attack mode. Their metabolic waste products, such as alcohols, acetaldehyde, and other toxins, stress the liver, brain, and immune system on a daily basis. The result: diffuse symptoms that hardly anyone can explain.

That’s why taking a closer look matters. In this newsletter, we explain why Candida is often overlooked - and how the body’s balance can be restored in a targeted, holistic way.

Candida albicans – The Great Imitator

The most common fungal species is Candida albicans. According to studies, up to one in three people carries elevated levels of Candida without being aware of it (1). Yet this simple rule of thumb has quite a story behind it: Until just a few years ago, Candida-related intestinal overgrowth was dismissed in conventional medicine as "clinically irrelevant". Many educational institutions labelled the topic as "naturopathic myth", and systematic diagnostics were largely absent. Only since the mid-2010s has it become clear that Candida toxins (e.g. D-arabinitol) can measurably burden the immune system and the gut barrier (e.g. increased zonulin) (2).
Today, Candida albicans is recognized as an opportunist in medical guidelines, but standard blood cultures still detect only 21–71% of actual cases, and stool or molecular PCR diagnostics are still far from widely available. Conventional diagnostics continue to lag behind the experience of Biological Medicine, where darkfield microscopy, stool analysis, and antibody profiling have long been routine.

Who Is at Risk?

Almost all of us carry Candida and are part of the natural human flora and therefore not classified as classic pathogens. A healthy organism keeps them effortlessly in check; neither infection nor tissue irritation occurs.

But this balance is fragile. Even small changes in the inner milieu, subtle shifts in body physiology, immunity, or microbial ecology, can turn a silent cohabitant into an active disruptor. Candida itself does not fundamentally change; rather, the environment around it tips, making a normally harmless resident potentially pathogenic. For this reason, candidiasis is a classic “milieu illness” in Biological Medicine.

Patients with pre-existing dysbiosis belong to the largest risk group; the following factors further increase the likelihood of symptomatic Candida overgrowth:

  • Women undergoing hormonal shifts (birth control, pregnancy, menopause)
  • Patients on antibiotics (up to 80% loss of gut flora after only 7 days)
  • Individuals with chronic stress and/or high sugar intake (including alcohol)
  • Diabetes mellitus (postprandial hyperglycemia ≥ 180 mg/dL)
  • Chronically ill patients with proven dysbiosis (e.g., IBS, MCS, EHS, autoimmune or neurodegenerative diseases)

The Great Mimic – Why Candida Is So Difficult to Identify

Candida is notoriously difficult to recognise because it rarely presents with one clear, isolated symptom. Instead, its metabolic waste products can trigger a wide spectrum of diffuse and seemingly unrelated complaints, including brain fog, inner restlessness or racing anxiety, nighttime panic attacks, shortness of breath, irritable bowel symptoms, scent sensitivity, skin reactions, and persistent fatigue. In the following section, I will walk you through these symptoms step by step and explain how Candida’s metabolic by-products can give rise to this remarkable variety of clinical manifestations.
Symptoms


Panic Attacks & Anxiety – How Candida Sneaks into the Brain

The blood–brain barrier (BBB) is normally a dense protective shield that prevents pathogens or toxins from entering the brain. But Candida albicans possesses several virulence factors (e.g., phospholipases, hyphal formation) that allow it to traverse this barrier without structurally damaging it (3).

Here is what happens:

  1. Entry
    The yeasts latch onto the fine cerebral vessels and slip into the tissue as if through a "ghost door".

  2. Inflammatory alarm
    There they encounter microglia—the brain’s immune police. These immediately sound the alarm, releasing inflammatory cytokines (IL-6, TNF-α) and creating a neuroinflammatory "fire" that can feel like internal fever, head pressure, or inner restlessness.

  3. Toxic cocktail
    At the same time, acetaldehyde and ammonia accumulate, toxins that impair neuronal energy production, consume serotonin and dopamine precursors, and weaken mood and stress resilience.

The result: heart palpitations, shallow breathing, a constant internal alarm state, classic panic attacks whose origin is not psychological but biochemical.

 

Brain Fog & Cognitive Crash – Why the Mind Feels “Wrapped in Cotton”

Candida produces alcohol-like metabolic toxins in the gut, such as acetaldehyde. These pass through the intestinal lining into the bloodstream and block two key systems in the brain:

  1. Serotonin Brake
    Acetaldehyde consumes vitamin B6 and tryptophan, the building blocks of serotonin. When serotonin is low, memory, sleep, and mood all decline (4).

  2. eCB Signal Disruption
    These toxins impair the endocannabinoid system (eCB), which is responsible for short-term memory and mental clarity. Affected individuals feel dazed, “like being drunk, but without the fun.”

In short: Candida toxins prevent the brain’s batteries from recharging properly—leaving behind foggy thinking, word-finding problems, and mental exhaustion.

 

Irritable Bowel – When the Gut Is Permanently on High Alert

Candida settles preferentially in the final centimeters of the small intestine and throughout the colon. There it forms biofilms, produces gases (CO₂, H₂), and generates alcohol metabolites. The consequences:

  1. Gas Pressure
    These gases stretch the intestinal loops—causing gurgling, pressure, and bloating.

  2. Flood or Drought
    The intestinal lining becomes irritated: sometimes everything moves too fast (loose or mushy stools), sometimes too slowly (hard or constipated). Daily stool changes are typical of Candida.

  3. Nerve Irritation
    The inflamed mucosa sends constant distress signals to the brain. The result: a “nervous gut,” even though the real troublemaker is a biofilm.

  4. Leaky Gut
    Irritation and Candida-derived toxins loosen the tight junctions between intestinal cells. Microbial fragments, toxins, and even partially undigested food particles can then enter the bloodstream, further burdening the immune system and contributing to brain fog, fatigue, and sensory sensitivities (6).

Skin Flares – When the Fungus Pushes Outward

Through a leaky gut, Candida toxins enter the bloodstream and reach the skin, provoking three characteristic reactions:

  1. Eczematous Patches
    Redness, scaling, and itching—often in elbow folds, behind the knees, or on the neck.

  2. Urticaria Flares
    Rapid hives, often after sugar or alcohol, when Candida releases a surge of toxins.

  3. Psoriasis Flares
    Inflammatory cytokines (e.g., IL-17) stimulate excessive skin turnover, worsening existing plaques.

Candida can colonize almost any surface: mouth, throat, skin, scalp, vagina, nails, bronchi, lungs, gut—and the more imbalanced the terrain, the deeper it penetrates.


Vaginal Yeast Symptoms Despite a Negative Swab

Many women experience burning, itching, and whitish discharge yet the gynecological swab returns negative. Why? In many cases, the source is not the vagina but the gut. Small Candida colonies migrate from the rectal area toward the vaginal opening, irritating the sensitive mucosa. Because they do not permanently colonize the vagina itself, they are often not detected on the swab despite pronounced symptoms.

 

Chronic Fatigue – When Even 9 Hours of Sleep Aren’t Enough

As mentioned earlier, Candida produces volatile metabolic by-products such as fusel alcohols and reactive aldehydes, which can enter cells and block the mitochondria. As a result:

  • sugar is only partially converted into ATP,
  • “energy interruptions” occur in muscles and the brain
  • mornings feel like waking up after a night of heavy drinking.

As long as fresh acetaldehyde is produced daily, fatigue remains stubborn. Only when Candida is reduced and the gut is relieved can the body regain its full energy capacity.

 

Sugar Cravings and the Urge for Quick Carbs

Candida is a master manipulator. It influences two key brain circuits:

  1. Satiety Brake
    Its signals weaken the hormone leptin, the stomach is full, but the brain still signals hunger.
  2. Reward Button
    At the same time, dopamine increases, sweet foods or alcohol provide short-term “relief.”
Because alcohol is rapidly converted into sugar, the typical evening craving for sweets or wine appears. More sugar → more fungal growth → more toxins → more cravings. A perfect vicious cycle that ends only when the yeast population is brought under control.

When we address the Candida root, many symptoms improve at once. Panic, brain fog, bloating, skin rashes, vaginal irritation, and chronic fatigue are often interconnected because they share a common cause: a disrupted terrain in which Candida gains the upper hand.
But how do we determine whether Candida is truly involved?
Our Biological Diagnostics – Bringing Light Into the Dark

From the very first day of your stay, we begin assessing the inner milieu. The sooner we identify Candida involvement, the more precisely we can treat it.
With a single drop of blood under the dark-field microscope, we can detect within minutes whether delicate fungal filaments are present around or between red blood cells, a typical Candida pattern.

In parallel, we conduct bioresonance testing (VEGA) as part of the dental baseline assessment, which reveals additional resonance disturbances to yeasts and their toxins.

This gives us a clear preliminary diagnosis on Day 1, which we then confirm with laboratory testing over the following days:

  • Stool test/mycogram – yeasts can grow in culture and are identified as Candida spp.
  • Laboratory immune panel – measures IgG/IgA/IgM antibodies against Candida plus zonulin to assess intestinal permeability.
This allows us to begin targeted terrain rehabilitation immediately, individualized, evidence-based, and biological.
Nutritional Strategy – Not Fighting the Fungus, but Changing the Terrain

In the past, it was believed that Candida could be "starved out" with radical sugar-free diets. This often-proved little success. The reason is simple: Candida does not rely solely on sugar, and in fact often serves as a protective buffer, especially against heavy metals such as mercury, lead, and cadmium.

As long as the intestinal terrain is acidic, inflamed, and mineral-deficient, Candida will fight for its territory, regardless of months of sugar withdrawal. This is why the Paracelsus strategy focuses not on restrictions but on terrain regulation.

Our elimination diet strengthens three biological axes simultaneously:
  1. anti-fungal & detoxifying (biofilm)
  2. pro-microbiome & stabilizing
  3. heavy-metal-binding & alkaline
Only when all three pillars work together does Candida lose its survival advantage—and retreats naturally, without forcing the body into a harsh “die-off reaction.”
4-Week Candida Reset – Laying the Foundation for a New Terrain

  • Sugar-free, alcohol-free & gluten-free
    No refined sugar, no white flour, no alcoholic beverages. A portion of berries in the morning is allowed, low glycemic, rich in polyphenols, and microbiome-friendly.

  • Water-soluble fiber – binds fungal toxins & heavy metals and nourishes good bacteria Approx. 35 g daily from flaxseed, psyllium husk, chia, and green vegetables. Fiber binds acetaldehyde and dissolved heavy metals, prevents reabsorption, and simultaneously feeds bifidobacteria.

  • Bitters – nature’s antifungal allies
    Artichoke, dandelion, gentian, and chicory stimulate bile production. Bile acids exert antifungal effects, support the liver, and slow Candida growth.

  • Ferments – repopulating good neighbours
    Homemade sauerkraut juice or water kefir provides Leuconostoc and Lactobacillus strains that attach to the gut wall and crowd out Candida.

  • Alkalising minerals – neutralising acids and binding metals
    In coordination with the treating physician, alkalising mineral formulations may be used to:
    • reduce acid-forming metabolites,
    • support hepatic phase-II detoxification,
    • bind mobilised heavy metals and facilitate their elimination.
In this way, Candida gradually loses its "metal armour", and the body regains control over the intestinal terrain. We do not attack the fungus; we correct the terrain that allowed it to thrive.

Phytochemical & Biological Antifungal Tools

In Biological Medicine, we rely on gentle yet effective natural substances that regulate the internal milieu, reduce fungal pressure, rebuild the gut lining, and strengthen immune resilience. These include, for example:

 

The Paracelsus Biofilm & Parasite Protocol

In recent years, the Biofilm Protocol has become a cornerstone of our holistic approach, proving to be one of our most valuable tools. To simplify the concept, here are key facts about biofilms:

A biofilm is a complex community of microbial organisms, bacteria, fungi and even parasites embedded in a thick, resilient mucus layer composed of sugars and proteins. These communities continuously adapt to the surrounding terrain and can persist in the gastrointestinal tract for a lifetime.

A healthy mucus layer contains both beneficial and potentially harmful bacteria. When the harmful ones gain the upper hand, the once-fluid mucosal layer becomes sticky. To strengthen and solidify this “shield,” these organisms incorporate heavy metals and calcium over time, forming a near-cement-like structure. Within this environment, unwanted organisms can thrive and expand.

As the biofilm thickens, cellular oxygen exchange diminishes. Nutrient absorption drops. And because the same mucosal system lines the entire tract, from sinuses to end of the colon, biofilm-related issues can also affect the nasal passages, urinary tract, lungs, ear canals, mouth, and throat.

Simultaneously, a form of silent toxicity and inflammation develops, as the body struggles to eliminate waste through this obstructed layer. Today, nearly everyone is affected by some degree of pathological biofilm formation, a condition closely linked with leaky gut.

Our Biofilm Protocol helps dissolve this stubborn layer in a gentle, sustainable way. The ingredients in the Biofilm Shake penetrate deeply into the matrix, breaking it apart and allowing it to be excreted via the colon.

The Paracelsus 6-Day Biofilm Program dissolves the microbial shield before the main therapy begins:

  1. Enzymatic softening
    Acacia fiber and palm fibers cause the biofilm to swell and lose stability.

  2. Fermented Japanese plums (Share plums)
    These promote the excretion of these deeply embedded “messy tenants.”

  3. Alkalizing sodium bicarbonate infusions
    These help dissolve the calcium bridges that hold the biofilm together.
As a result, the mucus dissolves, Candida is exposed, and both the immune system and our botanical antifungals (included in the Biofilm Program) can work directly and effectively. Thanks to the high fiber content of the three main-meal shakes and the five mineral-rich shakes in between, this four-day protocol is easy to implement.

Once Candida Can No Longer Hide, We Apply:

Oregano oil acts antifungally because its key compounds, carvacrol and thymol, destabilize fungal cell membranes and disrupt their energy production.

Coconut oil contains caprylic acid, a fatty acid that destabilizes Candida cell membranes. Well-tolerated and ideal for daily use in the kitchen or as part of a short-term protocol.

Probiotic cultures
– restoring and stabilising the internal milieu In coordination with the treating physician, targeted probiotic cultures may be introduced to support mucosal healing, repopulate beneficial bacterial strains, and sustainably reduce Candida’s ecological advantage.

Zeolite helps reduce fungal toxins by binding acetaldehyde, ammonium, and other positively charged compounds in its negatively charged porous structure—escorting them safely out of the body via the gut.

Isopathic Sanum therapy
Biological medicine also uses isopathic preparations that help regulate the mycotic milieu and guide the body back into microbial balance, such as Albicansan® D3. These remedies work not by attacking, but by restoring order and microbial harmony.

Gut Reset & Liver Support

  • Colon hydrotherapy
    Used to flush out dissolved biofilms, toxins, and yeast colonies completely.

  • Rectal ozone
    Provides locally acting, highly diluted oxygen species that help reduce microbial load while improving mucosal blood flow and antioxidant defenses.

  • Liver detoxification program
    Supports the body's ability to break down and eliminate burdensome metabolites such as ammonia, acetaldehyde, and other toxins more efficiently.

 

If Detox Symptoms Intensify (Herxheimer Reaction)
In case of increased symptoms:
• reduce dosage by half
• increase bitters
• increase zeolite for toxin binding
• drink plenty of water

Our Guiding Principle

We do not treat the microbe. We treat the terrain in which it thrives.
A disturbed intestinal ecosystem can generate a surprising variety of symptoms from fatigue, digestive issues, and skin irritation to signs many would never associate with the gut, such as inner restlessness, panic attacks, shortness of breath, or mood swings. Once the terrain is balanced, the entire system often calms, physically and emotionally. Knowledge about Candida is widespread today, but early recognition and comprehensive microbiome restoration are still not standard everywhere.

This is the gap we close in Biological Medicine with care, experience, and modern diagnostics.
If you suspect that Candida may be draining your energy or affecting your well-being, feel free to schedule a fungal screening appointment, including a darkfield test and a personal 15-minute results consultation. You can reach us at +41 71 335 71 71 or info@paracelsus.com.


With warm regards and our best wishes for a powerful, light, and healthy new year,


Your Holistic Nutritionists
Dr. Sonja Lewandowski, PhD
Ms. Sonja Bacus
References:
  1. Bongomin F et al. Global and Multi-National Prevalence of Fungal Diseases-Estimate Precision. J Fungi (Basel). 2017 Oct 18;3(4):57.
  2. Stradomska TJ et al. Determination of urinary D-/L-arabinitol ratios as a biomarker for invasive candidiasis in children with cardiac diseases. J Med Microbiol. 2010 Dec;59(Pt 12):1490-1496.
  3. Jong AY, Stins MF, Huang SH, Chen SH, Kim KS. Traversal of Candida albicans across human blood-brain barrier in vitro. Infect Immun. 2001 Jul;69(7):4536-44.
  4. Markey L et al. Colonization with the commensal fungus Candida albicans perturbs the gut-brain axis through dysregulation of endocannabinoid signaling. Psychoneuroendocrinology. 2020 Nov;121:104808.
  5. Zhao Y et al. Candida albicans Infection Disrupts the Metabolism of Vaginal Epithelial Cells and Inhibits Cellular Glycolysis. Microorganisms. 2024; 12(2):292.
  6. Renga G et al. To Be or Not to Be a Pathogen: Candida albicans and Celiac Disease. Front Immunol. 2019 Dec 5;10:2844.

Understand How Candida Influences Your Oral Health

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