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For Heart Health: Psyllium fiber, the natural dietary fiber found in Metamucil, is clinically proven to help lower cholesterol levels because it forms a thick gel that traps some cholesterol, bile acids and waste in the gut.
The original style of Metamucil is called Metamucil Orange Smooth. One tbsp. of the original orange-flavored powder has 45 calories and 12 g of carbohydrates, including 9 g of sugar. The fiber content is 3 g, of which 2 g is soluble fiber. Metamucil also contains iron and a small amount of sodium and potassium.