Discover Metamucil Fizzy Fiber + Metabolism of fats & proteins* C, D & B12! We infused our signature psyllium husk fiber blend with vitamins C, D and B12 for delicious fiber supplement you can add to your daily health and wellness routine. Metamucil Fiber + Metabolism will transform how you think about your fiber supplement. Metamucil's plant-based psyllium fiber supplement traps and removes the waste that weighs you down*, so you can feel lighter**. Vitamins C & D help support immune health* and Vitamin B12 helps support the metabolism of fats & proteins into cellular energy*. Metamucil Fiber + Metabolism contains 100% of your daily value of vitamins C and B12. Metamucil Fiber + Metabolism also is not the Metamucil supplement you may be familiar with. This sugar-free powder is sweetened with plant-based stevia and when mixed with water delivers an effervescent, sparkling, fizzing fiber supplement in a delicious citrus flavor. Enjoy Metamucil Fizzy Fiber + Metabolism daily!