e-Fuel Endurance Blend
Powerbar Endurance

e-Fuel has nearly twice complex carbohydrates and half the simple sugar levels compared to Powerbar Endurance, in addition to a complete vitamin and antioxidant profile. The higher levels of complex cabs and lower sugars allows e-Fuel to deliver significantly more energy (how is this possible?)

Check out the head-to-head comparison and scroll below for a more detailed discussion of each ingredient.




  Calories (8 oz serving) 80 70
  Complex Carbs 14 g 7 g
  Sugars 5g 10 g
  Sugars (% of total carbs) 29% 55%
  Carb Sources Maltodextrin

  Sodium 150 mg 190 mg
  Potassium 60 mg 10 mg

  Sodium Citrate
  Potassium Citrate
  Citric Acid

  Vitamin E 60% 0%
  Vitamin C 60% 0%

Protein 0 g 0 g

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Ingredient Information and Explanation 

Maltodextrin is the preferred carbohydrate source for endurance athletes and as such it is the primary ingredient in e-Fuel as well as most other good products on the market. Powerbar Endurance is 53% simple sugars. The danger of high sugar content products such as Powerbar Endurance is that they can elevate your blood sugar level too far too fast which can lead to a sugar crash (also known as bonking). Higher sugar content also raises the osmolality of the product which can reduce energy delivery, delay fluid absorption and promote dehydration. 
e-Fuel is designed to provide complete and balanced electrolyte replacement that is critical for proper hydration and to avoid muscle cramping. The sodium and potassium levels in e-Fuel are designed to meet the American College of Sports Medicine's recommendation for electrolyte replacement during intense athletic activity.
The Citrates in e-Fuel assist in the carbohydrate to energy conversion process as well as reduce and slow the build-up of lactic acid in your muscles.
e-Fuel is one of the few sports drinks on the market that contains antioxidant vitamins C and E to help protect against tissue damage, reduce soreness and aid in the recovery process. 
Protein has to go through a digestive process which draws blood away from working muscles to the stomach and intestines. When you are competing in an aerobic activity you want as much blood as possible supplied to your muscles carrying fresh oxygen for the energy conversion process. Consequently, independent studies have found no benefit of protein in a sports drink. See the following article from the American College of Sports Medicine for a more complete discussion:

American College of Sports Medicine
Failure of Protein to Improve Performance when Added  to a Sports Drink

Science Daily
Protein-added Sports Drinks Don't Boost Performance



The nutritional information shown above for PowerBar Endurance is for an 8 oz serving as published December 2008. Please refer to the manufacturer's web site or product packaging for the most recent information.

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