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EFX Sports, Karbolyn Fuel, Neutral, 68.8 oz (1950 g)

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EFX Sports, Karbolyn Fuel, Neutral, 68.8 oz (1950 g)

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EFX Sports, Karbolyn Fuel, Neutral, 68.8 oz (1950 g)

In Stock
  • Expiration Date: April 2023
  • Shipping Weight:
    5.85 lbs
    Switch to Metric units
  • Product Code: EFX-00203
  • UPC Code: 737190002032
  • Package Quantity: 68.8 oz
  • Dimensions:
    10 x 6 x 6 in, 4.95 lbs
    Switch to Metric units

Product Rank:

Frequently Purchased Together
Product Overview


  • Energy
  • Endurance
  • Recovery
  • Informed-Sport - Trusted by Sport
  • Performance Carb
  • Dietary Supplement
  • Gluten Free

What is This "Performance Carbohydrate" Karbolyn?

Karbolyn represents the dawn of a new era of carbohydrate supplementation. Derived from potato, rice and corn, this fast acting, long-lasting, high-performance compound offers the best of both simple and complex carbohydrates.

Simple carbohydrates have the ability to enter the bloodstream quickly. However, they can also stimulate a strong "spike" and subsequent "crash" due to a rapid rise and fall of insulin levels. This may be good for a quick burst of energy but not for sustained endurance.

Complex carbohydrates do provide sustained endurance. But, they are slow to digest, and can leave you feeling bloated and lethargic.

Karbolyn Delivers The Best of Both Worlds

Karbolyn is absorbed into the blood stream like a simple sugar but without the typical crash caused when your muscles run out of fuel. It has also been shown to be absorbed as quickly as pure Dextrose (a simple carbohydrate). Yet, it still provides sustained energy without "crashing".

Don't Take Our Word For It.. What Does The Study Say?

The Clinical Study sought to document whether or not Karbolyn has a positive and sustainable impact on blood sugar levels in normal adults during aerobic activity. Data obtained from participants indicated that a simple sugar promoted a steep drop and subsequent "crash" at a predictable point in time. Karbolyn gave an overall smoother decline in blood glucose level.

Suggested Use

How to use Karbolyn

For Individuals - As a dietary supplement, mix 1 scoop in a shaker cup with 16 ounces of water and drink 30 minutes before exercise.

Usage Guidelines for Intense Training or Athletic Events

Before Training - Drink 1 serving 30 minute before exercise.

During Training - Sip on 1 serving during exercise.

After Training - Drink 1 serving after exercise.

Other Ingredients



Keep out of reach of children. Protect from heat, light and moisture. Store at 59-86ºF (15-30ºC).


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
Supplement Facts
Serving Size: 50 g (One scoop)
Serving Per Container: 39
  Amount Per Serving %Daily Value
Calories 200  
Calories from Fat 0  
Total Fat 0 g 0%
Saturated Fat 0 g 0%
Cholesterol 0 mg 0%
Sodium 0 mg 0%
Total Carbohydrates 50 g 16.7%**
Dietary Fiber 0 g 0%
Sugars 0 g
Protein 0 g 0%
Karbolyn (homopolysaccharide derived from potato, rice and corn) 50 g
**Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established