Comparison of Energy Gels

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[ VFuel Gels] have no [[Fructose]], so it's ideal for those that suffer from [ fructose malabsorption]. It has a little fat in the form of [[MCT| Medium Chain Triglycerides (MCT)]], as well as some Taurine, which I think are good things, but probably the amount is not significant enough to make much of a difference. Note that MCT can cause serious digestive problems, but probably not at these levels. There is a little [[Caffeine]], intended to increase the carbohydrate absorption rather than to improve performance. I found the VFuel very easy on the stomach and a worthy alternative to Hammer Gel. (Note VFuel was previously called Vi Endurance.)
[[File:Gels-Vi-Fuel.JPG|none|thumb|500px|ViFuel(with a Gu as a size reference)]]
''<br/>Ingredients (Vanilla): [[Maltodextrin]], water, dextrose, VFuel Endurance Formula (MCT Oil, Taurine, Glucuronolactone, ornithine alpha-ketoglutarate (OKG), citrulline malate, [[Magnesium]] aspartate, sodium citrate, [[Potassium|potassium]] aspartate), pure vanilla flavor, [[Potassium|potassium]] sorbate, sea salt, [[Caffeine]]''
[[File:Gels-Honey-Stinger.JPG|none|thumb|500px|Honey Stinger (with a Gu as a size reference)]]
''<br/>Ingredients (Gold flavor): Honey, Water, [[Potassium]] Citrate, Salt, Natural Flavors, Vitamins & Minerals, Niacinamide (Vit B3), Calcium Pantothenate (Vit B5), Pyridoxine, Hydrochloride (Vit B6), Riboflavin (Vit B2), Thiamine Mononitrate (Vit B1), Cyanocobalamin (Vit B12)''
=Zipvit ZV7/ZV7c=ZV7 is a larger gel, and as you can see from the picture below, it's about twice the size of a Gu. I much prefer the smaller size of the Gu (and similar gels) as it gives me the freedom of taking one or two gels as needed. The flavors of ZV7 seem enticing, but in practice I found they did not live up to the promise. The flavors I tried ended up being overly sweet, but the flavoring was a little thin. There's also a lot of sugar in ZV7, which makes it harder to digest than the better Gels. In fact, my estimate is that you'd need to take about a pint (half liter) of water with a packet of ZV7 to make it isotonic. The caffeinated versions are called "ZV7c".
[[File:Gels-ZVZ7.JPG|none|thumb|500px|Zipvit ZV7 (with a Gu as a size reference)]]
''</br>Ingredients: Water, Maltodextrin, Sucrose, Glucose Syrup, Citric Acid, Natural Flavor, Potassium Sorbate, Sodium Chloride.''
=#9 Chocolate=
The only ingredients in this [ #9] are Agave and Cocoa, and Agave is predominantly [[Fructose]] (55% [[Fructose]] to 20% glucose). This amount of [[Fructose]] is slow to be absorbed and can be difficult to digest, making it a poor choice for most runners. The Agave makes this gel intensely sweet, which I did not like and the '[ processed with alkali]' means that most of the antioxidants from the chocolate are destroyed. This is also by far the thickest gel that I've tested so far, being more like a paste than a gel. This gel may be suitable for runners that suffer from a blood sugar drop after taking more conventional gels prior to exercise (see [[The Science of Energy Gels| The Science of Energy Gels]] for more details).
''</br/>Ingredients: organic agave nectar, cocoa processed with alkali''
=Mud Energy Gel=
There are some unusual ingredients in Mud Energy Gel, including rather more protein than any other energy gel. The form of the protein is also a little strange, which is from Collagen, whey protein and brown rice protein. While whey protein is common in sports foods, collagen is rather unusual, and brown rice protein seems an even stranger choice. The gel includes [ Sustamine], a combination two amino acids to form L-Alanyl-L-Glutamine. There are some bold claims for Sustamine, but I couldn't find the research to back it up. The inclusion of Brown Rice syrup can create a bitter aftertaste, as well as possible contamination with [ arsenic]. This gel is also rather large, coming in at about twice the size of a Gu or other gel, but it's only got about 50% more calories, making it too large for runners. Overall, the digestibility of Mud Energy Gel is a little poor, but I found the flavor to be a bigger problem. I realize that flavor is a personal thing, so I tried a sample of Mud on several people and it was met with universal distaste, and some people even thought I was playing a prank on them. The only thing I've found that has a similar flavor has been some "[ salty licorice]". However, it's been noted that salty licorice is an acquired taste, and that people not familiar with it may find the taste "physically overwhelming and unlikeable." So maybe with more exposure, the flavor becomes better.
Unlike energy gels, [ PocketFuel] is a peanut butter like paste in an energy gel like packet. They are similar a little larger than most other gels (about 1.8oz/52g) but have far more calories (~280) due to their higher fat content. (Be careful of the nutrition label, which quotes values for a 32 gram serving, even though the packet contains 52g. The label says each packet contains "about 2" servings, but is actually 1.6 servings.) I would not generally recommend PocketFuel for runs shorter than about 40 miles, but for longer races they make a convenient form of food. Note that for some flavors the ingredients tend to settle and it's worth squishing the packet before your run to mix things up.
[[File:Gels-Pocket-Fuel.JPG|none|thumb|500px|Pocket Fuel (with a Gu as a size reference)]]
''</br/>Ingredients (chocolate haze):Hazelnuts, almonds, sugar, cocoa powder, sunflower oil, organic palm fruit oil, sea salt.''
==PowerBar Performance Energy Blend==
[ PowerBar Performance Energy Blend] (PEB) almost made it into my list of gels. It looks like a large energy gel, with a re-closable a screw top. It's actually about three times the size and weight of a standard gel like Gu, even though it contains less calories (80 Cal). The reason for the low energy density is that it's a mixture of fruit puree and glucose. If you've ever eaten apple puree, you'll know what PEB is like. I found PEB to quite pleasant, but the size and lack of calories means it's impractical to carry enough while running.