Raising healthy chickens and ducks requires lots of protein and nutrients - so it only makes sense to make sure your backyard chickens are in tip top shape with a nutritious dietary supplement!  Our brewer's yeast is formulated by experts and verified by independent labs to: * Provide extra nutrients and vitamins * Fortified with crucial minerals such as niacin, vitamin B6, and B12. * Easily bio-available beneficial bacteria & probiotics * Contains oregano, echinacea, and garlic to support healthy immune systems so your chickens and ducks are as healthy as possible! Brewer's yeast is the perfect dietary supplement to ensure your backyard flock grows healthy and strong.