That headline is another incomplete / clickbait claim. There’s no general medical warning that “eating onions causes” something harmful for most people.
Here’s the real picture about Onion:
🧅 What onions actually do (the good)
- Rich in antioxidants and compounds that support heart health
- May help reduce inflammation
- Can support digestion (in moderate amounts)
⚠️ When onions can cause problems
1. Gas and bloating
- Onions contain fermentable carbs (FODMAPs)
- Common in people with sensitive digestion or IBS
2. Acid reflux / heartburn
- Raw onions can relax the lower esophageal valve
- This can worsen symptoms in people with reflux
3. Bad breath
- Sulfur compounds linger in the mouth and bloodstream
4. Allergic reactions (rare)
- Some people may experience itching, swelling, or discomfort
5. Eye irritation (when cutting)
- Not from eating, but due to released sulfur gases
❌ What’s NOT true
- Onions do not “cause diseases” in normal amounts
- There is no doctor recommendation to avoid onions entirely
- They are not harmful for healthy people when eaten as part of a balanced diet
✔️ Simple takeaway
👉 For most people, onions are healthy and safe
👉 Problems only show up if you’re sensitive, eat large amounts, or have specific conditions
If you want, I can explain which people should limit onions (like IBS or reflux cases) or how to eat them without discomfort.