💚 “Green Poop? What Your Gut Is Trying to Tell You”
By Dr. Rafael Kimura, Global Digestive Health Specialist & Microbiome Researcher
Let’s talk about something we all do—but rarely discuss: poop. Specifically, green poop. It might sound alarming, but in most cases, it’s not a cause for panic. In fact, your stool color is one of the most honest indicators of what’s happening inside your body.
As a gastroenterologist who’s worked in clinics from São Paulo to Seoul, I’ve seen every shade imaginable. And yes, green is on the spectrum of normal—sometimes.
🧪 Why Is It Green?
Here are the most common reasons:
1. Diet
Eating lots of leafy greens (spinach, kale, broccoli)
Artificial food coloring in candies, ice cream, or sports drinks
Iron supplements or chlorophyll-rich powders
2. Fast Transit Time
If food moves too quickly through your intestines, bile doesn’t break down fully
Bile starts out green and turns brown as it’s digested—so fast transit = green stool
3. Gut Infections
Viral or bacterial infections (like Salmonella or norovirus) can speed up digestion
May be accompanied by diarrhea, cramps, or fever
4. Antibiotics or Medications
Changes in gut flora can affect digestion and stool color
Some medications may also contain green dyes
🚨 When to Worry
Green poop is usually harmless, but see a doctor if:
It lasts more than 3 days
It’s accompanied by severe diarrhea, fever, or vomiting
You see blood or black tar-like stool
You have unexplained weight loss or fatigue
✅ What You Can Do
Track your diet and symptoms
Stay hydrated
Avoid excessive artificial dyes
Support your gut with probiotics and fiber
Seek medical advice if symptoms persist
🔍 Keywords
Why is my poop green
Green stool causes
Gut health and digestion
Bile and stool color
Fast digestion symptoms
Green poop after eating spinach
When to worry about stool color
Digestive health tips
Microbiome and bowel changes
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