There's always a Metamucil that's right for your lifestyle. Metamucil is the #1 doctor recommended fiber therapy - and Metamucil provides as much calcium as an 8-ounce glass of milk for strong bones. The fiber in Metamucil® is proven to lower cholesterol. At 3 grams of dietary fiber per serving, taken up to three times per day, you can easily add as much as 9 grams of dietary fiber to your diet with Metamucil. It's never too early or too late to start reducing the risk of heart disease while adding fiber to your diet.