Can chickens eat onions?
Quick Answer
No
Onions contain a compound called thiosulphate which is toxic to chickens. Consuming onions can lead to a condition called hemolytic anemia, which can be fatal.

Why It Can Be Risky
Feeding onions to chickens poses several risks due to the presence of thiosulphate.
- Thiosulphate can cause hemolytic anemia, a condition where red blood cells are destroyed faster than they can be replaced.
- Symptoms of onion poisoning in chickens include weakness, discolored urine, and shortness of breath.
- In severe cases, onion poisoning can be fatal.
Safe Alternatives
- There are many safe alternatives to onions for chickens. These include fruits like apples and berries, vegetables like carrots and broccoli, and grains like oats and rice.