SIS Energy Gel Comparison

SIS Energy Gel claims to be isotonic which means the same concentration as your cellular fluids. However, independent analysis done by fellrnr.com indicates that it is not. SIS does have a thin consistency, but by their analysis you need another 47 grams of water (more than doubling what’s in the pack) to make it isotonic. e-Gel is a thinner consistency than traditional energy gels, so you don’t have to take water to get it down either, but with ALL energy gels it is important to stay hydrated so that your gel gets rapidly absorbed.

Beyond that, the comparison between SIS Gel and e-Gel is not even close, e-Gel wins by every metric. e-Gel is loaded with electrolytes (SIS has virtually none) to avoid cramping and injuries. e-Gel also has antioxidants and amino acids (SIS has none) to reduce tissue damage and soreness and to speed the recovery process. There’s lots more, read on for the full comparison.

calories

e-Gel

150

SIS Gel

87

Each pack of e-Gel provides almost twice as much energy as a pack of SIS Energy Gel. This makes e-Gel more economical as well as having fewer packs to carry and less trash to deal with, that’s a good thing!

complex carbs

e-Gel

30 g

SIS Gel

22 g

Your body can uptake more energy when you use complex carbs instead of simple sugars. How is this possible?

Click below for the detailed explanation

This isn’t something that we’ve invented here a Crank Sports, it’s proven science. 

Read on (or watch this video)

The carbs/energy in an energy gel are transported into your cellular system through osmosis. If you recall learning about osmosis in science class, it’s the way a fluid crosses a membrane. In order for the fluid to cross, it has to be an equal or lower concentration than the fluid on the other side of the membrane. In this case you’re trying to get the gel across your cellular membrane so you can use the energy. Gels by themselves are extremely concentrated (hypertonic), that’s why you need to use water with gel so that you can lower the concentration until it becomes isotonic (the same concentration as your cellular fluids). When you do, the gel and water get absorbed – osmosis!!

What’s interesting is that the concentration of a fluid (also called the osmolality) is largely dependent on the NUMBER of particles in the fluid, and less dependent on the size of the particles. Complex carbs by definition have a larger molecular structure than simple sugars, basically they have more glucose molecules stuck together. But remember, it’s the number of particles, not the size that matters most. What that means is that at the point of absorption (isotonic), a fluid with complex carbs can transport nearly twice as much energy into the cellular system compared to one with simple sugars.

Many energy gels (including e-Gel) use at least some maltodextrin for this reason. Maltodextrin is a complex carbohydrate with an extremely large molecular structure. Where e-Gel sets itself apart from other products is that we use much more complex carb and less sugar. This allows you to get more energy when you use e-Gel compared to our competitors. Why do other companies use so much sugar? Simple, because it’s sweet and inexpensive, and sweet things sell. So if you want to sell a lot of something you make it sweet. But if you want to make the best PERFORMING product you use complex carbs.

carb sources

e-Gel

Maltodextrin
Fructose

SIS Gel

Maltodextrin

Both e-Gel and SIS use maltodextrin which is the preferred complex carbohydrate for endurance athletes.

e-Gel also uses fructose because it allows for additional energy uptake that you do not get from SIS and other gels that don’t use it.

read why you want fructose

artificial

e-Gel

No artificial flavors,
colors or sweeteners

SIS Gel

Acesulfame K

Acesulfame K, also know as Ace K, is an artificial sweetener that is more common in Europe than the United States. It contains the carcinogen methylene chloride and studies have shown it to cause headaches, depression, nausea, mental confusion, liver effects, kidney effects, visual disturbances, and cancer in humans. Read: the dangers of Ace-K

This is the type of ingredient that we would never use in e-Gel or any of our products.

sodium

e-Gel

230 mg

SIS Gel

10 mg

e-Gel is the only energy gel to provide complete electrolyte replacement in the gel – where it should be!

Sodium is by far the most important electrolyte that you need to replenish to help you maintain hydration and to avoid cramping and injuries.

For a more detailed discussion of why it’s important to have this level of electrolytes in the gel instead of getting your electrolytes some other way:

read details

potassium

e-Gel

85 mg

SIS Gel

0 mg

Potassium is the other electrolyte that is important to replace during your training and competition, along with sodium. The level of potassium in e-Gel is designed to meet the American College of Sports Medicine’s recommendation for replacement during athletic activity. 

amino acids

e-Gel

Histidine, Leucine,
Valine, Isoleucine

SIS Gel

none

Amino acids help to reduce lactic acid build up, reduce soreness, maintain muscle protein and aid in quicker recovery.

SIS gel does not contain amino acids.

antioxidants

e-Gel

vitamin C 120%
vitamin E 120%

SIS Gel

vit C not disclosed
vitamin E 0%

Antioxidant vitamins C and E help protect against tissue damage, reduce soreness and aid in the recovery process.

citrates

e-Gel

Sodium Citrate, Potassium
Citrate and Citric Acid

SIS Gel

Sodium Citrate
and Citric Acid

Citrates assist in the carbohydrate to energy conversion process as well as slow the build up of lactic acid in your muscles.

ready to try e-Gel?

we guarantee you'll love it!

facebook-customer-reviews

Keith Castleton

"Figuring out how to stay hydrated, not get upset stomach and prevent muscle cramps during long runs and races has been one of my biggest challenges. In the past my muscles would ache and twitch and cause me a lot of pain after long runs. I came across e-Gel energy gels this summer used them during the Top Of Utah Marathon, took 17 minutes off my previous marathon PR and easily qualified for Boston." ...
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Maricopa, Arizona
Sport: Running

Jeff Rommel

"I broke the golden rule and tried e-Gel for the first time on race day. I ran the Houston Marathon and it was a great experience - no stomach issues and no muscle cramping. Water in my bottle and an e-Gel every hour got me through the race. I'm not the fastest runner, but I set a PR!" ...
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Houston, Texas
Sport: Running

Bruce English

"I recently completed a half-iron distance triathlon with a brutal bike course. At the end of the ride my quads started to cramp. I nursed an e-Gel over the first mile of the run and the cramps abated. I thought it may have been coincidence, but when the cramps resurfaced at mile 7 only to resolve with another e-Gel I was sold. I only drank water on the run and took e-Gel, so I feel confident that this product made the difference. " ...
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Waynesboro, Virginia
Sport: Triathlon

Mary Rogers

"I used e-Gels exclusively and exactly as directed in training for the Lakefront Marathon. This was my fourth marathon and I did not expect to PR, but just to complete it well. With the help of e-Gels taken at miles 2, 7, 13, 18, and 23, I took 10 minutes off of my marathon time and never hit the 'wall' or cramped as I had done in previous events. Some guy laughed at me at the start asking why I had so many energy gels. I told him I had a plan and I was sticking to it. I'm pretty sure I passed him somewhere around mile 22." ...
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Springfield, Illinois
Sport: Running

David Ball

"I've been using e-Gel for 2 years exclusively and will not go with anything else....I qualified for Boston with a 3:18:16 and felt great. One e-Gel 15 minutes before the race and one at miles 6, 12, 18, and 23 mile marks and then the last three miles were my fasted splits" ...
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Oklahoma City, Oklahoma
Sport: Running, Triathlon

Adam Lecompte

"This is by far the best energy gel product on the market, and I have been through them all. I have had nothing but positive training and racing experiences with this product. I trained on and used e-Gel in a half half marathon and busted a 1:32.44! My personal best of 5 half marathons. The sustained energy is incredible! I absolutely love this product." ...
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Houma, Louisiana
Sport: Running and Triathlon

Sam Albrecht

"40 miles into a 56 mile ride in the desert with two big hills I started cramping, and had to stop several times. The next week I did the same ride with e-Gel and had no cramping despite it being over 100 degrees. My hydration was the same, so I have little doubt the e-Gel played a big part in keeping me going that day." ...
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Big Bear City, California
Sport: Triathlon

Malcolm Campbell

"I looked for a gel that had less sugar and more potassium/sodium than some of the other energy gels. I came across e-Gel and used them is the US 50K Championships in Caumsett Park, New York. I finished 2nd in 3:04.22, so I guess they worked pretty good!" ...
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Marietta, Georgia
Sport: Ultra Running

Jeff Domenico

"I was running my best marathon ever in Detroit, had five miles to go and I took my e-Gel 100 yards before a water station. I got to the station and it was a bunch of guys handing out beer! GU and other energy gels are so thick that I would have needed water right away, but the e-Gel was so thin and easy to digest, I got through it just fine when I hit a water station about a mile later. Not only did I finally hit my sub-three hour dream, I hit 2:57!" ...
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Battle Creek, Michigan
Sport: Running

Dave Kumler

"I am an on-ice official in the AHL and I want to share my story about e-Gel ... My job as linesman requires me to sprint repeatedly and physically separate anyone who fights throughout the game. We get no breaks, no downtime, no relaxing...I need my energy level to remain constant. I had yet to find any product that satisfied my requirement. I tried GU, Clif Shots and other energy gels, but found that I was still needing something to get me thru the last half of the game. With e-Gel, I found it." ...
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Cleveland, Ohio
Sport: Hockey

NOTE: All SIS Isotonic Energy Gel nutrition values shown are for Orange flavor as of April 2021, other flavors may vary. e-Gel nutrition values are the same for all flavors, read why