5LB Healthy Mealworms. Zylina Healthy Mealworms are a tasty and nutritious treat your flock will love! Rich in protein and great for molting support, Zylina Healthy Mealworms are a favorite for chickens and ducks! A portion of Zylina proceeds support Plant With Purpose to address global poverty and environmental damage. 100% Natural, Rich in Protein, Molting support, Great for busting boredom! Ingredients: Dried Mealworms