How taking a “serving size” of dietary fiber supplements can have such a big impact on your bowel movements even though a serving size is only 2% of your daily dietary fiber needs?

Question

How taking a “serving size” of dietary fiber supplements can have such a big impact on your bowel movements even though a serving size is only 2% of your daily dietary fiber needs?

In: 55

Answer 1

A serving size of 1 teaspoon of Metamucil, a common fiber supplement, has about 11% of your daily dietary fiber: https://www.metamucil.com/en-us/products/fiber-powders/sugar-free-orange-smooth (under Supplement Facts).

You are supposed to take this 3 times a day for a total of 33% of daily fiber.

33% can be a large increase in fiber intake if you normally don’t have much fiber in your diet.