Have you ever asked yourself “What foods are poisonous to chickens“? Part of knowing how to take care of chickens is knowing what toxic treats chickens shouldn’t eat.

Feeding chickens can be an enjoyable and rewarding experience, but you need to understand what not to feed them! Avoid making the unfortunate mistake of giving your cherished birds a toxic treat by understanding which foods are poisonous.
This blog post outlines exactly what should never end up in your chicken’s feed or food bowl – so keep reading and ensure that all your feathered friends stay happy and healthy with these helpful tips on avoiding dangerous foods for chickens.
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Overview Of Foods To Avoid Feeding Chickens
Chickens may seem like carefree creatures, but when it comes to their diet, you need to be vigilant. For instance, did you know that apple seeds could spell disaster for your feathered friends?
As strange as it sounds, these small seeds contain small amounts of cyanide that could prove toxic to your chicken.
Similarly, you might want to rethink feeding your chicken avocados, which can upset their digestive system.
Other items best avoided are raw beans, which contain harmful toxins, and raw rice, which can swell in their crop. Lastly, stay away from green potatoes, which contain a toxin called solanine that can be fatal when consumed in large amounts.
Keep these foods out of your chicken’s diet, and keep them happy and healthy in return.
Top 17 Toxic Treats To Avoid Feeding Chickens
What are some of the most poisonous foods for chickens? These toxic treats should definitely NOT be fed to your backyard feathered friend.

- Chocolate – Chocolate contains theobromine, a compound that is toxic to chickens. Theobromine can cause an increase in heart rate, seizures, and even death in chickens.
- Avocados – Avocados (pits, flesh, and skins) contain persin, a compound that is toxic to chickens. Persin can cause respiratory distress, gastrointestinal problems, and even death in chickens. For this reason, chickens should not eat avocado.
- Caffeine – Caffeine is a stimulant that is toxic to chickens. Caffeine can cause an increase in heart rate, seizures, and even death in chickens.
- Alcohol – Alcohol is a depressant that is toxic to chickens. Alcoholic beverages can cause respiratory distress, gastrointestinal problems, and even death in chickens.
- Green potatoes and green tomatoes – Green potatoes and tomatoes contain solanine, a compound that is toxic to chickens. Solanine can cause gastrointestinal problems and even death in chickens. Potatoes and tomatoes are both in the nightshade family so great care should be taken when adding these to your chickens food.
- Raw potatoes and peels – Like green potatoes and tomatoes, raw potatoes, potato skins, and potato peels contain a toxic substance called solanine. This toxic food can cause digestive upset, weakness, and even death. Do not feed chickens raw potato skins!
- Citrus fruits – While citrus fruits are not toxic to chickens per se, citrus fruits contain high amounts of sugar so it is best to avoid feeding chickens this fruit. Citrus fruits also have been known to cause issues such as heartburn in chickens.
- Onions and garlic – Onions and garlic are not necessarily toxic to chickens. However, feeding chickens onions and garlic will cause your eggs to have a strong flavor. If this is undesirable, you should avoid feeding chickens onions and garlic. (I like the strong flavor these foods give my eggs so I’m perfectly fine with it.)
- Apple seeds – Apple seeds contain cyanide, which is toxic to chickens (actually, most living things).
- Apricot pits – Apricot pits also contain cyanide so they should not be eaten by chickens, or anybody, really.
- Rhubarb and rhubarb leaves – Rhubarb leaves (and rhubarb) contain high amounts of oxalic acid, which can be toxic to chickens in large quantities.
- Undercooked or dry beans – Dry beans and uncooked beans (including kidney beans, chick peas, black beans, pinto beans, and so on) contain a toxic substance known as lectins. The good news is this toxin is easily cooked out when you soak or boil your beans. Additionally, dried beans can cause kidney failure in younger birds so it is best to only feed cooked beans to your chickens.
- Salt and salty foods – Salt in high amounts is dangerous for all animals, but especially for those with small bodies and digestive tracts such as chickens. Be careful not to give your birds foods with too much salt! Salt poisoning is something you don’t want to introduce to your birds so avoid feeding excess salt.
- Greasy foods – Greasy foods and fried food can seriously upset a chickens’ digestive tract so please save the greasy pizza crust for the compost pile. No worries because as is the case with many processed foods and junk foods, there is nearly no nutritional value in most greasy foods.
- Coffee grounds – Due to the high amounts of caffeine in coffee grounds, you should avoid feeding these toxic foods to chickens.
- Rotten foods and moldy foods – Even if that rotton, moldy food won’t hurt your birds right away, do you really want to be eating meat and eggs that came from an animal that ate food that had gone bad? That doesn’t seem healthy for anybody.
- Iceberg lettuce – While iceberg lettuce is not toxic to chickens, too much iceberg lettuce can cause diarrhea, which can be deadly. This is due to the high water content in iceberg lettuce.
What Can Chickens Eat?
We’ve covered a lot of what chickens cannot eat, but what can chickens safely eat?
These articles should help!
- Can chickens eat rolled oats?
- Can chickens eat split peas?
- Can chickens eat hay?
- Homemade chicken feed recipes
- How to mix chicken feed
- Can chickens eat dog food?
- Can chickens eat cat food?
Why It’s Important To Know What Chickens Should Not Eat
It’s easy to have the mindset of “a chicken will eat anything,” but unfortunately that’s not the case! Knowing what chickens should not eat is crucial for their well-being and for our own benefit as well.
Chickens that consume toxic or harmful substances can not only become ill themselves, but it can also affect the quality of their eggs and meat. Plus, as the saying goes, “you are what you eat,” and that definitely applies to poultry!
The food they consume directly impacts the nutritional value of their products. So, next time you’re feeding your feathered friends, make sure to check your ingredients list and do some research on what’s safe and what’s not.
It’s not just the chickens who will thank you, but your own health as well!

There is something inherently peculiar about chickens, don’t you think? It’s as if they’re clucking to each other about all the secrets of the universe while they peck at the ground.
And while we may never understand everything they’re saying, one thing is for certain – we need to know what they shouldn’t be eating. Don’t let these curious creatures fall ill as a result of your lack of knowledge and make sure to do your due diligence regarding their dietary needs.
Which Human Food Is Toxic For Chickens
Just like we went over in the list of toxic treats for chickens above, there are plenty of human foods that are toxic to chickens.
We all know that chickens will pretty much eat anything that comes their way, but they should not eat everything we eat.
While we may enjoy munching on avocados or snacking on raw beans, these foods can be harmful to chickens. Citrus fruits and salty foods are also on the no-no list, along with junk food. And don’t even think about feeding those chickens any green potatoes.
So, if you’re a chicken owner, it’s important to know which foods to avoid to keep your flock healthy and happy.
More Common Household Items And Plants That Can Be Dangerous For Your Flock
As a responsible flock owner, you want to keep your feathered friends safe and sound. When it comes to common household items and plants, however, you might not realize that some can be downright dangerous for your flock.
For example, did you know that cleaning products like bleach and ammonia can cause serious respiratory problems? It is also important to be aware of items such as air fresheners, candles, insecticides, ivy, and azaleas.
And while lilies might be a beautiful addition to your home decor, they can be deadly if ingested by your birds.
Don’t fret though, with a little bit of knowledge and some careful monitoring, you can keep your flock happy and healthy in their home sweet coop.
How To Recognize When A Chicken Has Eaten Something Toxic (And What To Do When Your Chicken Is Poisoned)
Chickens are notorious for their love of pecking at anything and everything in sight. Unfortunately, this can sometimes include toxic substances that may put their health at risk.
While you may not always be able to keep a watchful eye on your feathered friends, there are some telltale signs that can alert you if they have eaten something toxic.

Keep an eye out for symptoms such as sudden lethargy, loss of appetite, or unusual behavior such as excessive head shaking or drooping wings.
By knowing what to look for, you can quickly recognize when your chickens are in danger and take prompt action to keep them healthy and happy.
If, heaven forbid, your birds show signs of poisoning or toxicity, you can do things such as offer large amounts of fresh water to hopefully help flush their system.
You can also do an Epsom salt flush -take 1 teaspoon of Epsom salts (magnesium sulfate) to 1/2 cup of water. Then pour or squirt it down your chicken’s throat twice daily for 2-3 days.
Remember – prevention is the best cure so always make sure your chickens’ environment is secure and no harmful substances or poisonous foods are present. The good news is most chickens tend to know how to listen to their bodies and are not likely to get into anything that will actually hurt them.
More Gardening And Chicken Keeping Resources
Still looking for more resources to help with gardening and chicken keeping? Check out these great ideas!
- What Ingredients Are In Chicken Food?
- Companion Planting Cheat Sheets
- What Vegetables Grow Well In Containers?
Tips On How To Keep Your Chickens From Eating Poisonous Foods
With their curious nature and determined pecking, chickens can inadvertently chow down on some dangerous foods. To keep your feathered friends safe, it’s important to stay one step ahead of their beaks.
For starters, make sure to secure your compost pile, as it can contain all sorts of toxic substances like lead and pesticides. Keep an eye out for spoiled foods, especially moldy bread and fruit, and dispose of them immediately.
Familiarize yourself with foods that are off-limits so you don’t have to pull out your portable search engine every time you want to feed the birds. Keep all trash tightly secured and away from the coop.
And, believe it or not, it’s a good idea to keep your chickens away from the house – common plants like lilies and azaleas can be deadly to birds.
With a little caution and know-how, you can enjoy fresh eggs and happy hens without having to worry about any foul play.
Charlene has been dabbling in and learning about the homesteading lifestyle for almost 20 years. She recently started a real-world homestead with her extended family and is excited to share 20+ years of knowledge and experience with the world!
While she certainly doesn't know everything about homesteading and is learning more every day, she is excited to learn and grow along with YOU!
Charlene blogs about about homesteading at https://secretlifeofhomesteaders.com/.





















