First EnduranceElectrolyte Fuel System (25 Servings)(Return to Product Page)

Enjoying the Very subtle (i.e., not too sweet) flavor and have been satisfied with how well it hydrates.

I have tried a lot of drink mixes and prefer EFS because has some sweetness, but is not too sweet and has the taste. It does the job of providing hydration and energy on a hot summer day of biking or a cold winter day of XC Skiing.

Works very well in deed! Better than any types for energy products I've taken in the past. For a long ride, I usually take 1 serving 12 hours before the ride and a half of back up bottle for every 20-25 miles. Feel fresh the whole ride and helps prevent the cramps too. Didn't really care for the taste, but it tastes like salty mineral water.

Having tried most of them, I find this one the best. It does not upset my stomach, is not sweet and does the job it is supposed to do. I like the mild grape and tropical fruit flavors. Also, it dissolves easily in water and tastes great even when warm.

Been using EFS for over 10 years and have yet to find a better sports drink

EFS has less of a sugary taste and doesn't upset my stomach as much as some of the tablets I've used. It also seems to have a higher electrolyte content.

It worked all day on my 100 mile mountain pass ride

Been using EFS for years and will continue. Great product.

I have tried them all and this one is the very best. Never upsets my stomach and provides what's needed for long rides. Subtle taste is very pleasant in a variety of flavors. Not overly sweet.

great taste and helps on rides over 2 hrs. mixes easily

5 years of using EFS for all endurance training over one hour. Consistent performance and No. digestive problems .

I've used this product for 3 years, primary during long training runs and bike rides and races. I use 2 scoops per 24oz bottle. it's helped me successfully complete 5 half Ironman races and one full. Although I wont use any comparable products, this EFS didn't work so well for a friend. It's worth a try if your not satisfied with your current electrolyte product.

Not the cheapest mix available, but I like the fruit punch flavor whether cold or warm. Not too sweet or sticky. Seems to have enough electrolytes to help with cramping (though maybe placebo effect at work). It does require a fair bit of agitation initially to get thoroughly dissolved.

I always like the lemon-lime flavor. It has high sodium and electrolyte content. Just one scoop per small bottle, I carry two bottles. This is one of a very few products that doesn't hurt my stomach. For a long ride, it really helps.

This is a great product I've used with my cycling for 2 years. Use two scoops with 24 oz water for routine exercise., add EFS Liquid Shot if you're planning to really hit the pedals for rides two hours or longer. Invigorates and doesn't upset stomach. Love this stuff.

The taste is light in the lemon-lime flavor. It has high sodium and electrolyte content, and I use one scoopful for a large bottle. Calories are low, so I take additional food on long rides. I would say recovery is improved for me, which may be due to the amino and malic acids. Price is high, particularly if I followed the product's recommended concentration.

I'll use a just about anything for electrolytes, but this stuff I use on big training days or race day. I am partial to the fruit punch and the taste hasn't got old yet?

I swim and bike 12 months of the year. I use EFS electrolytes as my primary replacement drink in my H20 bottles. Prevents cramping when used correctly (read the EFS bottle and website). I use EFS when riding over 2 hours and as a preload prior to exercising in heat even under 2 hours long session. Put this in your kit, it works and has good flavors.

For 2-3 hr rides I use EFS in one water bottle . Anything longer or very hard I'll use in both . As I have aged

( 68 ) I have trouble with leg cramps , EFS works very well to keep the legs fresher .

This product makes those plus 50 rides a little less painful. Easy to mix and very easy to digest. The lemon lime is a nice flavor and not too sweet.