No, goats don’t actually eat metal. This is one of the oldest myths in farming, and it comes from the image of a goat chewing on a tin can.
Do goats eat metal?
The classic picture of a goat chomping on a tin can is misleading. What the goat is actually after is the paper label and the glue holding it on, not the metal itself.
Goats explore everything with their mouths the way humans use their hands. They’ll mouth, lick, and chew on just about any object in their environment to figure out what it’s.
When a goat chews on a metal fence rail or a tin can, it tastes the material, decides it isn’t food, and spits out whatever it can’t swallow. This same curiosity is why people think goats eat everything.
The problem is that small pieces of metal like nails, wire, and staples can be swallowed accidentally during this process.
Do all goats eat metal?
The vast majority of goats don’t seek out metal on purpose. The goats that chew on metal objects more aggressively are often dealing with a mineral deficiency, boredom, or both.
A goat that’s constantly licking or chewing on metal fencing may be short on minerals like iron or zinc, and this same deficiency can lead to a goat chewing on bones as a form of pica. Providing a quality loose mineral supplement often stops this behavior.
Boredom is the other driver. Goats that are confined to small pens without enough browse or stimulation will chew on anything within reach, including metal hardware.
It’s also worth remembering that goats are browsers, not grazers or garbage disposals. They’d rather eat bark off a tree than graze low grass, and they naturally prefer to eat at chest height or above.
Their reputation for eating everything comes from their willingness to investigate with their lips and tongue, but investigation isn’t the same as consumption.
What about tin cans specifically?
The myth that goats eat tin cans probably started because goats are incredibly curious. They’ll mouth just about anything, from your shirt zipper to a fence post, but mouthing something and actually eating it are two different things.
What goats actually do is chew on the paper labels and glue stuck to the outside of tin cans because they like the taste. They spit out the metal part.
If a goat actually swallows a piece of the can, the results can be serious because sharp edges on tin cans are just as dangerous as nails or wire.
Goats are actually picky eaters that prefer bark, weeds, and browse over even the best hay. They’ll turn their nose up at feed that’s been on the ground for more than a few minutes.
What are the benefits of goats eating metal?
There are no benefits to goats eating metal. Zero.
None.
Any claim that chewing metal helps wear down teeth or provides minerals is flat-out wrong. Goats wear their teeth down by chewing cud and eating fibrous browse, not by gnawing on hardware.
If your goat needs minerals, give it a proper loose mineral supplement designed for goats. Metal objects aren’t a mineral source; they’re a health hazard.
What are the risks of goats eating metal?
Swallowed metal causes a veterinary condition called hardware disease, which is the common name for traumatic reticulopericarditis. The reticulum is the second of the goat’s four stomach compartments, and a sharp object like a nail, screw, or piece of fence wire punctures its wall and can work its way toward the heart.
Symptoms of hardware disease include sudden loss of appetite, grunting when walking, an arched back, and reluctance to move. A goat with hardware disease may also adopt a hunched posture and stop chewing cud entirely.
If you see these signs, get to a vet immediately because the sharp object can migrate toward the heart within hours. If the metal reaches the heart sac, it can be fatal.
Even blunt metal objects can cause blockages in the digestive tract. A piece of wire or a bolt that doesn’t puncture anything can still sit in the rumen and cause chronic irritation and poor digestion over time.
Using rumen magnets to prevent hardware disease
Rumen magnets, also called feed magnets or cow magnets, are a cheap insurance policy against hardware disease. You give the goat a small magnet in a bolus, it sits permanently in the reticulum, and any small metal pieces the goat swallows stick to the magnet instead of poking through the stomach wall.
Some farmers place a rumen magnet in each goat as a preventive measure, especially in herds that graze near old farmsteads, construction debris, or roadside pastures where metal fragments are more common.
Pasture management and metal-proofing
Walk your pasture and pen area with a magnet on a stick twice a year and you’ll be shocked at how many nails, staples, and wire fragments you pull out of the ground.
Remove old machinery, scrap piles, and junk from anywhere your goats can reach. Check fence lines carefully for broken wire and rusted staples.
If your property borders a road, walk your fence lines weekly since people throw all kinds of trash out of car windows.
Keep a simple emergency kit in the barn that includes a digital thermometer, a stethoscope for gut sounds, and your vet’s phone number. Knowing how to treat bloat quickly is another barn skill that can save a goat’s life.
If you suspect a goat has swallowed something sharp, time matters and a fast call to the vet can save the animal’s life.
What types of metal are safe for goats to consume?
No type of metal is safe for goats to eat. The question itself is based on the false idea that metal is a food source, which it isn’t.
The best thing you can do is metal-proof your goat areas. Making sure goats have access to the right kind of hay and proper minerals also reduces their drive to chew on inappropriate objects.
A goat left in a clean pasture with good browse and quality hay won’t go looking for tin cans to snack on.
Final Thoughts
Goats don’t eat metal on purpose. They chew on cans for the label, they mouth metal objects out of curiosity, and they occasionally swallow small sharp pieces by accident.
Preventing metal ingestion comes down to keeping your pastures and pens clean. A magnet sweep twice a year, proper fencing maintenance, rumen magnets for high-risk herds, and weekly fence line checks if you border a road will keep hardware disease out of your barn.
Frequently Asked Questions
No, goats don't actually eat metal. They chew on tin cans for the paper label and glue, not the metal itself. Goats explore everything with their mouths out of curiosity. Small metal pieces like nails and wire can be swallowed accidentally and cause a serious condition called hardware disease.
It's a common misconception that all goats eat metal. Only a small percentage of goats exhibit this behavior, and it's believed to be linked to a nutritional deficiency.
No, goats don't eat cans. They chew on the paper labels and glue on the outside, then spit out the metal. If a goat swallows metal, it can cause hardware disease, which is potentially fatal.
There are no benefits to goats eating metal. Metal objects aren't a mineral source and are a serious health hazard. If a goat needs minerals, provide a proper loose mineral supplement designed for goats.
If a goat ingests metal, it could potentially cause health problems. The metal could tear the lining of the goat's stomach or intestines, causing internal bleeding.
A rumen magnet (also called a cow magnet or feed magnet) is a small magnet given to a goat in a bolus. It sits permanently in the reticulum and attracts small metal pieces the goat swallows before they can puncture the stomach wall.
