No. Eggland's Best has strict regulations forbidding supplementation of diets with any antibiotic or administration of antibiotics to hens. It is a strict requirement that hens must be healthy and demonstrate normal production, flock livability, and food intake. Production parameters are monitored constantly by qualified specialists to ensure the wholesomeness of Eggland's Best products. Representative egg samples are screened on a random basis for the presence of antibiotics to ensure compliance with Eggland's Best regulations.