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Another Satisfied

"I am an Ultra-Runner and a proficient sweater and I need to take in large quantities of salt to keep from shutting down during training and races. I was relying on salt caps along with other Gel's like GU to try an maintain my metabolism but it was easy to get the mixture wrong and bonk....I plan on using e-Gel as my main electrolyte / energy gel at Western States 100 mile this June, bypassing the aid station's GU and GU2O, which made me so nauseous by mile 80, I almost did not finish the race in 2003." (read more)   

Joseph Swenson
Product: e-Gel
Sport: Ultra Running
Livermore, California
User since: November 2003

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GU Energy Gel

e-Gel and GU and very similar products with one significant exception - electrolytes!

e-Gel contains 4 times the sodium and double the potassium compared to GU for complete and balanced electrolyte replacement in addition to sustained energy. Both products contain maltodextrin as the primary carbohydrate source with a little bit of fructose. Both products contain amino acids, citrates and antioxidants. You will notice that e-Gel has a thinner consistency than GU so its easier to swallow when you're going hard. Also, each pack of e-Gel contains 50% more energy than a pack of GU making e-Gel more economical.






  Calories 150 100
  Carb Grams 37 g 22 g
  Carb Sources Maltodextrin
  Sugars 18% 32%

  Sodium 230 mg 60 mg
  Potassium 85 mg 45 mg

 Amino Acids    

  Sodium Citrate
  Potassium Citrate
  Citric Acid

  Vitamin E 120% 100%
  Vitamin C 120% 100%

 Other Ingredients    
  Vitamin B6 10% 0%
  Caffeine none some flavors*
  Fat 0% up to 2g

  Retail Price $1.59 $1.45
  Cost Per 100 Calories $1.06 $1.45


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Maltodextrin is the preferred carbohydrate source for endurance athletes and as such it is the primary ingredient in e-Gel as well as most other good products on the market. Both e-Gel and GU contain maltodextrin and a little bit of fructose.
e-Gel is the ONLY energy gel that is designed to provide complete and balanced electrolyte replacement that is critical for proper hydration and to avoid muscle cramping. e-Gel has approximately 4  times the amount of sodium and double potassium compared to GU. The sodium and potassium levels in e-Gel are designed to meet the American College of Sports Medicine's recommendation for electrolyte replacement during intense athletic activity.
Amino Acids
The amino acids in e-Gel and GU are designed to reduce lactic acid build up, maintain muscle protein and aid in recovery.
The Citrates in e-Gel and GU assist in the carbohydrate to energy conversion process as well as reduce and slow the build-up of lactic acid in your muscles.
e-Gel and GU are two of the only energy gels that contain antioxidant vitamins C and E to help protect against tissue damage, reduce soreness and aid in the recovery process.
Vitamin B6
e-Gel is the only energy gel to include vitamin B6 which assists in the energy conversion process.
While caffeine may give a temporary mental boost, unfortunately it is a diuretic, meaning that it causes your kidneys to produce more urine - thus promoting dehydration. Proper hydration is critical to optimum performance, and in our opinion caffeine should not be incorporated into your sports nutrition program. Our recommendation has always been that if you feel that you NEED caffeine, then only use a caffeinated product (there are plenty on the market) near the end of your competition when you need the psychological boost the most and there is little time to cause dehydration. We strongly recommend against relying on a caffeinated product for the duration of the competition.

* None of e-Gel's flavors contain caffeine. GU has caffeine in a few of their flavors.
Studies have shown that fat should not be in nutritional products that are consumed during intense athletic activity. As such, all flavors of e-Gel are fat-free. Most flavors of GU are also fat-free with the exception of the Chocolate Outrage and Mint Chocolate flavors.
At retail, a pack of GU cost about 15% less than a pack of e-Gel, however, each pack of e-Gel contains more than 50% more energy than a pack of GU (37 grams vs. 25 grams). On a cost per calorie basis GU is 37% more expensive than e-Gel.



The nutritional information shown above for GU is for a single serving packet of their Vanilla Bean flavor as published February 2015.

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