Many people struggle with chronic allergies, sensitivities, or autoimmune conditions that don’t respond well to conventional treatment. That’s where Low Dose Allergen (LDA) Therapy comes in—a gentle, science-based approach that aligns perfectly with functional and integrative medicine principles.

What is LDA Therapy?
LDA Therapy (Low Dose Allergen Therapy) was pioneered by Dr. W.A. Shrader Jr., a physician specializing in environmental and allergy medicine. His work has helped thousands manage complex immune responses with minimal medication. Learn more about Dr. Shrader and LDA
Unlike conventional allergy shots, LDA involves ultra-diluted doses of allergens combined with an enzyme co-factor (beta-glucuronidase). This combination gently retrains the immune system to stop overreacting to harmless substances—without triggering intense reactions. It is considered extremely safe and is administered only a few times a year.
How does this therapy work?
LDA Therapy operates on the principle of immune desensitization. By exposing the immune system to controlled, microdosed allergens, it helps reprogram immune cells to become less reactive over time. The enzyme beta-glucuronidase plays a key role in activating immune tolerance, reducing inflammation, and preventing exaggerated allergic or autoimmune responses.
Key benefits of LDA Therapy include:
- Long-Lasting Effects – Many patients experience significant relief with only a few treatments per year.
- Minimal Side Effects – Due to the extremely low allergen doses, adverse reactions are rare.
- Broad Applicability – Effective for a wide range of allergies, food sensitivities, and autoimmune conditions.
- Non-Suppressive – Unlike steroids or antihistamines, LDA does not suppress the immune system but instead promotes balance and tolerance.
Who is a good candidate for LDA therapy?
LDA Therapy is ideal for individuals with:

- Chronic allergies or food sensitivities that do not respond well to conventional treatments.
- Multiple chemical sensitivities or environmental intolerances.
- Autoimmune conditions seeking an alternative to long-term immunosuppressants.
- Histamine intolerance or mast cell activation syndrome (MCAS).
Conditions that LDA therapy can help with
It has been shown to provide relief for various allergic and autoimmune conditions, including:
- Environmental Allergies – Pollen, dust mites, pet dander, mold, and chemical sensitivities.
- Food Sensitivities – Gluten, dairy, nuts, and other common food intolerances.
- Asthma & Respiratory Issues – Chronic sinusitis, rhinitis, and allergic asthma.
- Autoimmune Disorders – Hashimoto’s thyroiditis, rheumatoid arthritis, lupus, and inflammatory bowel diseases (IBD).
- Chronic Inflammatory Conditions – Eczema, psoriasis, migraines, and fibromyalgia.
What to expect while on this therapy
LDA Therapy is administered via small intradermal (skin) injections, typically every 7-10 weeks during the initial phase. Over time, the frequency of treatments decreases as the immune system builds tolerance. Most patients begin noticing improvements within a few months, with continued benefits accumulating over the course of treatment.
LDA Therapy vs. Traditional Allergy Treatments
| Feature | LDA Therapy | Traditional Allergy Shots |
|---|---|---|
| Frequency | Every 7-10 weeks | 1-2 times per week |
| Dose | Ultra-low doses | Increasing doses over time |
| Side Effects | Minimal | More common |
| Immune Approach | Rebalances immune tolerance | Suppresses symptoms |
| Treatment Scope | Allergies, autoimmune, and inflammation | Primarily allergies |
Optimizing your treatment results
For best results, patients undergoing LDA Therapy should:
- Follow an anti-inflammatory diet to support immune balance.
- Avoid trigger foods and environmental allergens as much as possible during treatment.
- Support gut health with probiotics, digestive enzymes, and prebiotic-rich foods.
- Prioritize stress management techniques, such as meditation, yoga, or breathwork.
- Work with a functional medicine provider to address underlying immune dysfunction and optimize overall health.
Takeaway: A natural path to immune balance
LDA Therapy offers a groundbreaking, root-cause approach to allergy and autoimmune management. By retraining the immune system and reducing sensitivity to allergens, LDA empowers individuals to achieve long-term relief and better health without reliance on harsh medications.
If you’re struggling with allergies, food sensitivities, or autoimmune symptoms, consider exploring LDA Therapy as part of a functional medicine approach to healing. Contact us for a consultation today to learn if LDA is right for you!
