What foods to eat when you have a viral infection: a scientific dietary guide to enhance immunity
Recently, seasonal influenza, respiratory syncytial virus (RSV) and other viral infection peaks have occurred in many places around the world, and scientific diet has become the focus of public attention. This article combines the hot health topics on the Internet in the past 10 days to compile a list of foods and practical suggestions that can help fight viral infections.
1. Recent virus epidemic trends (data in the past 10 days)

| Virus type | Popular areas | Symptom characteristics |
|---|---|---|
| Influenza A H3N2 | North America, Europe | High fever, muscle aches |
| respiratory syncytial virus | Many countries in Asia | Coughing, wheezing |
| norovirus | School/nursing home | Vomiting, diarrhea |
2. Antiviral Food Pyramid
| food category | Recommended food | active ingredients | Mechanism of action |
|---|---|---|---|
| Vitamin C | Kiwi, orange, bell pepper | ascorbic acid | Promote white blood cell production |
| Zinc element | Oysters, pumpkin seeds, beef | Zinc ions | Inhibit virus replication |
| Probiotics | Yogurt, kimchi, kombucha | Lactic acid bacteria | Regulate intestinal immunity |
| Anti-inflammatory | Turmeric, blueberries, olive oil | polyphenols | Reduce inflammatory response |
3. Phased diet plan
1. Early stage of infection (1-3 days)
Focus on supplementing electrolytes and easily digestible nutrients: coconut water, millet porridge, bananas, etc. At this time, high-fat and high-sugar foods should be avoided to aggravate the immune burden.
2. Fever period (3-5 days)
Increase protein and antioxidants: egg custard, crucian carp soup, strawberries, etc. Add 200ml warm water every 2 hours to maintain metabolic balance.
3. Recovery period (after 5 days)
Rebuild intestinal flora: foods rich in dietary fiber such as natto, oatmeal, purple sweet potato, etc., combined with moderate exercise.
4. Answers to hot search questions
| Popular questions | scientific advice |
|---|---|
| Does drinking chicken soup really work? | The cysteine in chicken soup can relieve mucosal inflammation, but the oil needs to be removed |
| Does vitamin C need to be doubled? | Do not exceed 2000mg per day. Excessive dosage may cause diarrhea. |
| How to take honey to relieve cough? | Children over 1 year old can take 1 teaspoon with warm water before going to bed. |
5. Special reminder
1. Diabetic patients should pay attention to their fruit intake and can choose low-sugar fruits and vegetables such as cucumbers and tomatoes instead.
2. People with seafood allergies can choose mushrooms and beans as alternative sources of zinc.
3. While taking antiviral drugs, you need to adjust your diet as directed by your doctor (such as to avoid grapefruit affecting the efficacy of the drug)
The latest research shows that daily intake of 200g of mixed berries for 10 days can reduce the risk of respiratory infections by 20%. It is recommended to combine dietary regulation with adequate sleep and moderate exercise to build a comprehensive immune defense line.
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