13.04.2026 Dr. Svenja Maier
Holistic Approaches to Allergies
In response, the body produces IgE (immunoglobulin E) antibodies against the allergens. The initial contact is asymptomatic—this is referred to as sensitization. During this process, the IgE antibodies attach themselves to mast cells and basophils, two types of immune system cells found primarily in tissues.
If the body comes into contact with the allergen again later, it binds to these cell-bound antibodies, triggering the release of histamine, prostaglandins, and other inflammatory mediators. This leads to the typical symptoms of an allergy, such as itching, swelling, redness, or increased mucus production.
Common Allergies
Allergies can be triggered by a wide variety of factors. Common examples include:
- Pollen allergies (e.g., grasses, hazel, or birch)
- Food allergies (e.g., eggs, milk, various nuts, or seafood)
- Contact allergies (e.g., nickel, fragrances, or preservatives in cosmetic products or detergents)
- House dust mite allergies, triggered by components of house dust
- Animal dander allergies, which are usually caused by certain proteins found in the animals’ dander or saliva
As varied as the triggers may be, they share a common denominator: the mucous membranes and the skin serve as the interface between the body and the environment. They perform an important protective function—and play a central role in the development and severity of allergies.
Typical Symptoms
Allergies are often associated with sneezing or a runny nose. In reality, however, they can manifest in many different ways and affect various organ systems:
- Respiratory tract: Sneezing, stuffy or runny nose, coughing, pressure in the sinuses, and in severe cases, shortness of breath
- Eyes: Itching, redness, watery eyes, sensitivity to light
- Skin: Itching, redness, hives, eczema, or dry, irritated skin
- Digestive system: Bloating, diarrhea, abdominal pain, nausea
- Systemic symptoms: Fatigue, exhaustion, difficulty concentrating, or a general feeling of being unwell
In rare cases, a severe immediate allergic reaction, known as anaphylactic shock, may occur. This affects the entire body and manifests itself through, among other things, severe circulatory reactions, shortness of breath, a drop in blood pressure, and impaired consciousness. Anaphylactic shock is a medical emergency and requires immediate treatment.
The symptoms that occur and their severity vary greatly from person to person. They depend, among other things, on the type of allergy, the intensity and duration of contact with the trigger, and the overall condition of the immune system.
Why Do Allergies Develop?
Allergies are generally not caused by a single trigger. Rather, they develop as a result of the interaction of various factors that gradually throw the immune system out of balance. As a result, the body’s immune system loses its ability to distinguish between harmless environmental substances and actual threats.
Factors that can contribute to such a dysregulation of the immune system include, among others:
- an unhealthy, highly processed, and low-fiber diet
- repeated use of antibiotics
- micronutrient deficiencies
- environmental toxins and pollutants from air, water, and food
- an overly hygienic environment with little exposure to natural environmental stimuli
- chronic stress, lack of sleep, and lack of physical activity
- genetic influences
- early-life experiences, such as cesarean delivery or lack of breastfeeding
The factors mentioned can influence the immune system in a variety of ways. A central common harmful mechanism is the impairment of gut health.
The Key Role of the Gut in Allergies
The gut plays a vital role in healthy immune function: approximately 70 to 80 percent of immune cells are located in the intestinal wall. A healthy gut microbiota and an intact intestinal barrier are therefore crucial for immune balance.
Beneficial gut bacteria produce numerous metabolic byproducts, including short-chain fatty acids, amino acids, and vitamins. These substances supply the intestinal mucosa with energy, stabilize the barrier function, and have a regulating effect on the immune system. If the gut flora becomes unbalanced—for example, due to environmental pollutants, antibiotics, chronic stress, or other factors mentioned in the previous section—the production of these protective substances decreases, while harmful bacteria can multiply.
As a result, the intestinal mucosa can become damaged and lose its protective function. An intact intestinal barrier prevents undigested food particles, pathogens, or other foreign substances from entering the body unchecked. However, if this barrier is compromised, the immune system comes into increased contact with substances it classifies as potential threats. This promotes excessive immune responses and increases the risk of developing allergies and autoimmune diseases.
Through what are known as gut-organ axes, the gut also communicates closely with other tissues, such as the skin or the mucous membranes of the respiratory tract. Changes in the gut can therefore manifest themselves in distant parts of the body. From a holistic perspective, gut health should always be taken into account when dealing with allergies—even those that, at first glance, appear to have no direct connection to the gut, such as hay fever.
Holistic Treatment Approaches
The goal of a holistic approach to allergies is to regulate the immune system and restore it to a state of balance. Optimizing diet and lifestyle forms an important foundation for this. This includes a diet that is as natural and nutrient-rich as possible, sufficient sleep, effective stress management, and regular exercise. It is also advisable to reduce exposure to environmental pollutants and toxins as much as possible.
In addition, certain micronutrients and plant-based ingredients can help support gut health, mucous membranes, and normal immune function:
- Probiotics and prebiotics: Probiotics provide specific microorganisms found in healthy gut flora. Prebiotics—certain types of dietary fiber—serve as a food source for these bacteria and promote their growth.
- Vitamin C: protects against oxidative stress and contributes to the normal function of the immune system.
- B vitamins: support energy metabolism and are important for the nervous system as well as for the health of the skin and mucous membranes.
- Vitamin D: contributes to the normal function of the immune system.
- Vitamin A: is a fat-soluble vitamin that contributes to the maintenance of normal skin and mucous membranes and is necessary for normal immune function.
- Zinc: supports numerous immune system processes, protects cells from oxidative stress, and contributes to the maintenance of normal mucous membranes.
- Quercetin: is a phytochemical found in many fruits and vegetables, such as apples, onions, and citrus fruits. The intake of quercetin is discussed in connection with histamine release.