Digestive system making you feel sluggish? Start by taking Metamucil Multi-Health Fiber Powder every day to trap & remove the waste that weighs you down, so you feel lighter and more energetic. Metamucil is the only leading brand made with Psyllium Fiber, a plant-based fiber that helps promote digestive health. It also helps you control appetite, maintain healthy blood sugar levels, and lower cholesterol. See how one small change can lead to good things. Gluten Free.