Do Allergies Affect Sports Performance?
Allergies are one of the most common unnoticed causes of declining sports performance. Symptoms of seasonal allergic rhinitis (hay fever) can reduce VO2max and worsen reaction time by up to 20%.
👃 Nasal Congestion
A blocked nose forces breathing through the mouth — this is less effective because air is not filtered, moistened or warmed. Oxygen uptake decreases.
😴 Fatigue
An allergic reaction activates the immune system and releases histamine, which causes inflammation and fatigue. Chronic fatigue = worse training.
🧠 Concentration
Allergy symptoms (sneezing, itchy eyes) distract attention. Allergic athletes are thought to make slower decisions during competition.
😮💨 Asthma
30-40% of allergic people have exercise-induced asthma (EIA — Exercise-Induced Asthma). Characterized by shortness of breath, wheezing 5-10 min. after the start of training.
📊 Most Common Types of Allergy and Their Effect on Sport
| Allergy Type | Triggers | Symptoms in Sport | Management Strategy |
|---|---|---|---|
| 🌸 Seasonal (hay fever) | Pollen (birch, grasses, mugwort) | Sneezing, runny nose, itchy eyes | Antihistamines, nasal sprays, indoor pools during flowering |
| 🏠 House Dust | Dust mites, mold | Morning sneezing, constant runny nose | Frequent washing of bedding, air purifier, humidity control |
| 🍞 Food Allergies | Nuts, milk, eggs, fish, soy | Stomach pain, rash, anaphylaxis | Strict elimination. Always carry an EpiPen. |
| 🏃 Exercise Allergy | Exercise (rare but serious) | Itching, hives, in rare cases — anaphylaxis | Train only with a partner. Antihistamines before training. |
💊 Antihistamines for Athletes: What Is Allowed, What Is Not?
Most antihistamines are permitted in sport (not WADA-banned). However, side effects must be considered:
- 1st generation (chlorphenamine, diphenhydramine, ketotifen): Cause drowsiness — NOT RECOMMENDED before training or competition. Reaction time slows by 15-25%.
- 2nd generation (cetirizine, loratadine, fexofenadine, bilastine): Do not cause drowsiness (or minimally), work for 24 h. Recommended for athletes. Fexofenadine — the best choice.
- Nasal sprays with corticosteroids (fluticasone, mometasone): MOST EFFECTIVE for seasonal allergies. Start using 1-2 weeks before the pollen season. Local effect, no effect on performance.
- Decongestants (pseudoephedrine): WADA MONITORED (not prohibited, but monitored). Can raise blood pressure and heart rate. Use with caution.
📝 Practical Tips for Allergic Athletes
- Train in the morning or evening: Pollen concentration is highest between 10-16 h. Early morning or late evening is best.
- After training outdoors — wash yourself: Pollen accumulates on skin, hair, clothing. A shower after training reduces contact.
- Indoor pool: Swimming in a chlorinated pool is a great alternative for allergy sufferers — humid air and no pollen.
- Low-histamine diet: Avoid fermented products (cheese, wine, sauerkraut), cured meat, chocolate during the season — they increase histamine levels.
- Start antihistamines before the season: Don't wait for symptoms — start taking it 1-2 weeks before the pollen season begins. Prevention > treatment.
🛒 Recommended Supplements
Choose quality supplements to achieve your goals:
🔗 Related Tools
🔬 Why Is This Especially Important for Athletes?
Athletes have unique physiological needs that make this topic even more relevant:
- Increased metabolism: Intense training accelerates the metabolism of many substances, so athletes need to pay more attention to recovery and balance.
- Oxidative stress: Physical load increases free radical production — athletes’ antioxidant needs are 2-3 times higher.
- Hormonal fluctuations: Intense training affects the balance of cortisol, testosterone, and growth hormone — nutrition can help balance these changes.
- Immune System "Window": After intense training, an "immune window" opens for 3-72 hours, during which the body is more susceptible to infections.
🏅 Recommendations by Sports Level
Athletes of different levels require a different approach:
🟢 Beginners (1-2 years)
Focus on the basics: balanced nutrition, sufficient protein intake, vegetables at every meal. Do not rush with complex strategies — first learn the basic habits.
🟡 Intermediate (2-5 Years)
Start experimenting with meal timing and macro periodization. Monitor how your body responds to different carbohydrate amounts before/after workouts.
🔴 Advanced / Elite (5+ Years)
Individualize everything: blood tests every 3-6 months, DEXA scans, sports dietitian consultations. Small details can provide a decisive 1-2% advantage.
🛒 Additional Products for Your Goals
In addition to the main supplements, these products can help you achieve better results: