Based on the video, here is a list of foods to never feed your chickens, along with the reason why for each.

Avocado: Contains persin, which is highly toxic to chickens.

Banana Peels: They are too difficult for chickens to digest. Stick to the banana flesh.

Eggplant Leaves: The leaves, stem, and bud of the plant are poisonous. The eggplant itself is safe.

Raw Beans: Contain lectins, toxic compounds, and phytic acid, which can lead to decreased egg production, circulatory problems, and mineral deficiencies.

Green Tomatoes: The solanine is toxic to chickens. Ripe tomatoes are safe in moderation.

Onions: The sulfur compounds can damage their red blood cells, causing anemia.

Fruit Pits & Seeds: Apple seeds, cherry pits, and other fruit seeds/pits contain cyanide.

Rhubarb & its Leaves: They contain oxalic acid, which is highly toxic to chickens.

Uncooked Pasta & Rice: They can swell in their crop and cause blockages. Always cook them first.

Processed Foods: Chips, deli meats, and packaged snacks are too salty, fatty, and unhealthy.

Sugary Foods: Sugar disrupts digestion and can lead to obesity and poor egg laying.