Keep raw and cooked onion, skins, scraps, and onion powder away from the flock.
Check soups, sauces, stuffing, seasoned rice, and savory baked goods for onion.
Do not use onion as a home remedy.
Keep the baseline
Complete, life-stage-appropriate feed should remain the nutritional base. Do not offer spoiled, moldy, salty, or seasoned leftovers.
Sources and evidence notes (2)
10 Foods You Should Never Feed Chickens
University of Florida IFAS Extension, Holmes County — Chicken-specific cautions for avocado, chocolate, raw or dry beans, green or sprouting potatoes, moldy food, salty food, onions, apple seeds, caffeine, and alcohol; also reinforces balanced feed as the primary diet.
Management of Backyard Poultry
MSD Veterinary Manual — Veterinary overview of backyard-poultry nutrition, including the risks of diluting complete rations with supplemental feed and of using old, improperly stored, or life-stage-inappropriate feed.
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