- Helper T cells include Th1 and Th2, which control immune responses while maintaining a balance with each other.
- Th1 dominance tends to be associated with some autoimmune diseases, while Th2 dominance tends to be associated with allergic diseases (this is not always the case).
- Certain foods and ingredients may influence Th1/Th2, and fermented foods, vitamins, and omega-3s are said to easily regulate both.
- It is important to avoid extreme self-stimulation of one side and to adjust under the guidance of tests and doctors.
Introduction: For those concerned about allergies and autoimmune conditions — What is Th1/Th2 Balance?
The topic of immunity might seem complex, but Th1 and Th2, representative helper T cells, are like a team that divides tasks. We at geefee often hear from readers concerned about common allergies and fatigue. When the 'seesaw' of Th1 and Th2 becomes unbalanced, it can be related to symptoms of allergies and autoimmune conditions. Here, we'll share easy-to-incorporate tips for daily life, without getting too technical.
Roles of Th1 and Th2 and their Disease Associations
Simply put, Th1 is responsible for cellular immunity and is strong in dealing with viruses and intracellular bacteria. On the other hand, Th2 is responsible for humoral immunity, producing antibodies to react to parasites and allergens. Both are necessary, but problems can arise when the balance is disrupted.
- Examples often associated with Th1 dominance: Type 1 diabetes, multiple sclerosis, Crohn's disease, rheumatoid arthritis, etc.
- Examples often associated with Th2 dominance: Atopic dermatitis, asthma, allergic rhinitis, certain chronic inflammations, etc.
However, these are merely 'tendencies'. The development of diseases involves multiple factors such as genetics, environment, gut bacteria, and stress.
What foods and ingredients influence Th1/Th2?
Things said to stimulate Th1
- Echinacea, Astragalus (Ogi), medicinal mushrooms (containing beta-glucan)
- Asian ginseng, Chlorella, grape seed extract, licorice, etc.
Things said to stimulate Th2
- Caffeine (coffee), green tea extract, resveratrol, curcumin, quercetin, etc.
- Some polyphenols such as Pycnogenol and lycopene
Safe foods said to regulate both
- Fermented foods (yogurt, kimchi, sauerkraut, kefir, kombucha, etc.)
- Vitamins A and E, Vitamin D, Omega-3 (EPA/DHA), colostrum, etc.
Datis Kharrazian, a Harvard University researcher and functional medicine clinician, suggests balancing by stimulating the opposite side when one is dominant. However, there are large individual differences, and the effects of the same food vary from person to person.
Practice: How to balance in daily life
Rather than taking large amounts of supplements, it is often less risky to adjust gently with daily diet and lifestyle habits. In reports from readers who tried our suggestions, some found their condition stabilized by incorporating yogurt and fermented foods every morning, and consuming blue fish (EPA/DHA) twice a week.
- First, incorporate fermented foods, various vegetables, and nuts into your diet.
- Prioritize sleep and stress management (chronic stress disrupts immune balance).
- If you are concerned, consult a doctor about blood tests and immune function tests (Th ratios may also be checked in infertility tests).
- If using supplements, start with the minimum amount after consulting with a doctor or specialist.
Summary
Th1 and Th2 share important roles in immunity, and an imbalance can be related to allergies and autoimmune conditions. While specific foods and ingredients may influence each, we recommend incorporating foods that gently regulate both, such as fermented foods, omega-3s, and vitamins, into your daily life. Avoid extreme self-judgment, and if you have any concerning symptoms, adjust gradually while undergoing tests and consulting with a doctor. We are also actively trying and exploring safe and sustainable methods with our readers.
Disclaimer: The information in this article is for general informational purposes only and does not constitute medical advice. Please consult a qualified healthcare professional before making any health-related decisions.