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Optimum Nutrition Fitness Fiber 6.87 Oz

4 reviews   |  
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Original price $9.99
Current price $5.99
SKU 748927026528
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Optimum Nutrition Fitness Fiber

The average adult normally doesn’t consume even half of the recommended daily fiber amounts. If you are finding it difficult to reach the recommended 25-35 grams per day than a fiber supplement can be extremely useful! Fiber has a ton of benefits to our bodies; it can help boost nutrient absorption, help eliminate toxins stuck in the digestive track and help keep you regular & full while dieting!

Optimum Nutrition Fitness Fiber Benefits

  • 6 Different Fiber Sources
  • 5 Grams Per Serving
  • 10 Calories
  • Unflavored
  • Mixes Into Anything
  • Keep You Satisfied Longer
  • Promote Healthy Digestion

What Foods are High in Fiber?

Foods which are high in fiber include foods like peas, lentils, black beans

Optimum Nutrition Fitness Fiber Ingredients

Serving Size: 1 Teaspoon (6.5 g)

Servings Per Container: 30

Amount Per Serving %

Calories 10

Calories from Fat 0

Total Fat 0g 0%

Sodium 0mg 0%

Total Carbohydrate 6g 2%

Dietary Fiber 5g 20%

Protein 0g

Not a significant source of Saturated Fat, Trans Fat, Cholesterol, Sugars, Vitamin A, Vitamin C, Calcium or Iron.

Other Ingredients: Fiber blend (polydextrose, digestion resistant maltodextrin, inulin, partially hydrolyzed guar gum, psyllium seed husk, gum arabic).

Optimum Nutrition Fitness Fiber Directions

Add l teaspoon of Fitness Fiber to any beverage or food with a consistency that permits easy mixing. Sauces, dressings, soups, puddings and cottage cheese are all good examples. Stir until thoroughly mixed.

Optimum Nutrition Fitness Fiber Suggested Use

To assess your tolerance for extra dietary fiber, start with one serving per day, preferably with a meal. You can gradually add additional servings with other meals or protein shakes as needed.


Store in a cool dry place. 


Anderson JW, Baird P, Davis RH Jr, Ferreri S, Knudtson M, Koraym A, Waters V, Williams CL. Health benefits of dietary fiber. Nutr Rev. 2009 Apr;67(4):188-205. doi: 10.1111/j.1753-4887.2009.00189.x. PMID: 19335713.

Hervik AK, Svihus B. The Role of Fiber in Energy Balance. J Nutr Metab. 2019;2019:4983657. Published 2019 Jan 21. doi:10.1155/2019/4983657

Warning Concerning California Residents:

This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.

Customer Reviews
4.5 Based on 4 reviews
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United States
Great Product/Great Service

I have used this fiber product for some time. Its ratio of grams of fiber to serving size to calorie count is one of the best. Lots of communication from Best Price Nutrition on ordering and shipping information.

Jennifer L.
United States
ON Fitness Fiber

We all need more fiber in our diets. That said, this fiber made by Optimum Nutrition, is the quickest, easiest way to accomplish that for my husband and me. This fiber dissolves easily in coffee. I generally consume about 20-25 grams of fiber every morning by drinking my morning coffee. It is tasteless. Sometimes I mix some in our scrambled eggs. It’s great.

Great if you have a hard time getting your fiber in

I for some reason have a hard time getting my fiber in during the day so I bought this fitness fiber and it has helped me out tons. A few times during the day I take a scoop and by the end of the day my overall fiber content in where it needs to be.

Not big fan

I am not a big fan of this product. I've been using this for a few months and I'm not a big fan. This product is hard to mix and only mixes well in hot water. The only good part is for the price for 20 serving, it is amazing. It lasted me a good month and half.