Keeping yourself healthy can be easier and more affordable with these coupons for Metamucil. Metamucil is a great fiber supplement that helps lower cholesterol and promote a healthy heart, encourages a healthy digestive system and helps maintain blood sugar levels. Available in powder, fiber, capsule and single serving form, you can save on all of Metamucil's flavors, like Orange Smooth, Berry Smooth and Pink Lemonade Smooth.