In Jainism there is no concept of “Jain chicken.” The principle of ahimsa (non-violence) leads most Jains to be strictly vegetarian, avoiding all meat, fish, eggs, and any products that involve harming animals.

• Chickens (and any other animals) are not eaten by ordinary Jains.
• Some Jains also avoid root vegetables (like onion, garlic, potatoes) to minimize harm to living beings, depending on local tradition (Digambar vs. Shwetambar) and family practices.
• If your friend mentioned a “Jain chicken,” it is likely a plant-based substitute or a misunderstanding; it is not a standard Jain practice to eat real chicken.

If you want, I can share more about how Digambar and Shwetambar traditions differ on dietary details.