What should people with asthma and COPD avoid eating and drinking, and what should they eat to stay healthy?
Nutrition plays an important role in managing bronchial asthma and chronic obstructive pulmonary disease (COPD). An appropriate diet not only helps patients maintain good physical health but also contributes to reducing the risk of episodes of breathlessness and respiratory infections, thereby improving quality of life. This material provides basic nutritional recommendations to help people with asthma and COPD understand which foods to limit and which to choose to support respiratory health.
1. What should people with asthma and COPD limit?
- Very cold foods and drinks: Ice water and ice cream may irritate the airways.
- High-fat, greasy, and hard-to-digest foods: These can cause bloating and increase the sensation of breathlessness.
- Carbonated drinks: These can cause abdominal distension and affect breathing.
- Alcoholic beverages: These may worsen symptoms and affect treatment effectiveness.
- Overeating or eating close to bedtime: These habits increase the risk of gastroesophageal reflux.
- Food allergens: Avoidance is recommended only for patients with a clear history of food allergies. Foods commonly reported to trigger allergic reactions include seafood, peanuts, eggs, and certain fermented foods, such as pickled shallots, pickled onions, and fermented fish products.
2. What should people with asthma and COPD eat to stay healthy?
- Green vegetables and fresh fruits: Provide vitamins, minerals, and antioxidants.
- High-quality protein sources: Fish, lean meat, eggs, and tofu help maintain respiratory muscle mass.
- Healthy fats: Vegetable oils, nuts, and fatty fish.
- Adequate fluid intake: Helps thin mucus and makes it easier to cough up sputum.
- Smaller, more frequent meals: Help reduce bloating and breathlessness.
3. Daily lifestyle considerations
- Take medications regularly as prescribed by your doctor.
- Maintain a healthy weight and avoid both malnutrition and excess weight.
- Combine physical exercise with pulmonary rehabilitation when instructed.
- Consult healthcare professionals if you experience weight loss, loss of appetite, or persistent difficulty eating.
4. Key health education message
A balanced diet and healthy lifestyle help people with asthma and COPD manage their conditions more effectively and improve their quality of life. Patients should consult their doctor or a dietitian for recommendations tailored to their individual health status.
This health education material is based on international recommendations and current professional guidelines for the management of asthma and COPD.
The information above is for reference purposes only and is not intended as medical advice. Please contact your doctor for detailed medical consultation.

