Zero.
Eating rocks is dangerous. Your teeth can crack. Your throat can get cut. Your stomach and intestines are not built to grind or pass rocks. Small ones can cause choking. Bigger or sharp ones can block your bowels or tear tissue. Some rocks also carry metals or toxins.
Talk to a doctor if you already ate rocks, even more so if you have belly pain, vomiting, constipation, blood in stool, trouble swallowing, or fever. Go to urgent care or the ER if pain is strong, you keep throwing up, or you cant poop or pass gas.
If you feel an urge to eat rocks, bring that up with a doctor too. It can be linked to pica, iron deficiency, stress, or other mental health stuff. A blood test is often part of the workup. Don;t keep testing it at home.
- Not ‘a few.’ Not ‘small ones.’ Zero.
@jeff is right on the core danger, but I’d add this: even if a rock somehow makes it past your mouth and throat, that does not mean it was ‘fine.’ A lot of gut injuries show up later, after irritation, blockage, or internal scraping gets worse. People sometimes think ‘I swallowed it and feel okay, so no problem.’ Nope. Bad logic.
Another angle is contamination. Rocks are dirty. Soil bacteria, parasites, pesticides, heavy metals, random chemicals from wherever it came from. So it’s not just a mechanical problem, it’s also a contamination problem. Your digestive system is built for food, not gravel lol.
If you already ate one, watch for symptoms over the next day or two, not just right away. If you have pain, bloating, trouble eating, black or bloody poop, vomiting, or that stuck feeling in your chest or throat, get checked. If it’s a kid who ate rocks, I’d call a doctor faster tbh.
And if this is more than a one-time weird idea, ask about pica screening and iron levels. Sounds odd, but it’s a real medical thing, not just ‘being strange.’ Don;t normalize it.