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EFS-PRO DRINK

PROFESSIONAL STRENGTH DRINK MIX

EFS drinks provide everything you need to maximize endurance and performance during exercise so you can train and race knowing you don’t have to worry about cramping or dehydration.

KEY BENEFITS
✓ Professional Strength Endurance & Hydration Drink
✓ Maximizes Performance & Delays Fatigue in Extreme Conditions
✓ Delivers 1400mg of Essential Electrolytes to Prevent Cramping

$2.10

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$2.10
Overall Average Rating:
30 reviews

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Doug 107/04/2018 18/04/201816:28
  • more than 1 month(s)
  • Overall:
PR and saved me again!
Just finished 70.3 Florida Tri. I'd been training for many months to PR this race and crossed my fingers that the heat wouldn't be a big factor. Happily it was cooler than anticipated and coming out of the water I was three minutes ahead of my goal. And then...the bike. First half was flat and fast and I was SO happy that EFS Pro went down easily. I've struggled in the past with GI issues and usually the wrong drink just locks me up. Not with EFS Pro. I mix a concentrated bottle, mark the sides, and squeeze a hit into my hydration system with water added. So....halfway through the sun decides to make an appearance big time. And as an added bonus, the hills appear. It was challenging but the ONE thing I didn't worry about was my hydration. EFS Pro just goes down easily and the lemon has just enough flavor. I knew it was going to get hot so I upped my intake a bit and had zero problems. Off the bike and I realize it's a PR by 20 minutes. A mix of happiness and dread hits me as I wonder whether I'll pay the price on the run. Sure enough, sun out in full force and a couple brutal hills make looking at my watch something I dread. In T2 I picked up my bottle of EFS Pro and start to ease into the run, take swigs, and get my bearings. Not once did my stomach balk. A couple PreRace capsules and things are back in gear for the second and third laps. At the finish, a PR in all three stages and overall PR by almost 30 minutes. Okay, so my training paid off but there is ZERO chance I could have done this without the right hydration product. I cramp up in epic ways if I'm not careful. No cramps this day as well. I just can't say enough good things about this product and it's SO nice with everything else to worry about in triathlon that this is one thing I DON'T have to worry about!
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Marty 73/03/2018 15/03/201806:05
  • Richmond, VA
  • 57
  • 511
  • more than 1 month(s)
  • Overall:
Problem Solved!
I tried several products and have consistently had GI issues during Half and Full Ironmans. A Pro Triathlete recommended EFS and from day one I have not experienced any issues during training or racing. I love the full line of First Endurance products and they are an integral part of my regiment now.
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Ben 313/11/2017 10/11/201712:00
  • Overall:
Game Changer
After an early season bonk using a different electrolyte drink I made the switch to EFS-PRO. It has been a total game changer in the way I train and race. I have energy at the end of long rides and runs even in extreme heat. EFS-PRO helps give me the ability to finish stronger than I started in races and training. Also my stomach never even so much as rumbles while racing using EFS-PRO. I would highly recommend this product to any athlete struggling with energy and bonking in long distance triathlons.
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Will 269/09/2017 27/09/201702:56
  • Overall:
Fantastic
Absolutely love EFS Pro, super friendly on my stomach and I am able to get through my entire ride without cramping. Also it seems very easy to get tired of other drinks during long workouts but with EFS Pro it still goes down easily towards the end of a long day. The smaller scoop (than regular EFS) makes it really easy to adjust the concentration when mixing. Works great at high concentration for intense days, and lower concentration for more endurance based workouts.
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Rachel 260/09/2017 18/09/201717:56
  • Overall:
Best hydration/cal product out there!
I really liked the regular EFS, but found myself diluting it for a lighter flavor. Fast forward a few years and EFS-Pro arrives. I love the light flavor and the added carbohydrate sources. Never a GI issue.
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What kind of abuse are you reporting?
    Please, wait...

    Single-serve packets expire 1/30/18

    100% MONEY BACK GUARANTEE

    GET FREE SHIPPING + OTHER PERKS

    RIGOROUSLY TESTED IN THE MOST EXTREME CONDITIONS


     

    EFS-PRO delivers higher levels of calories, electrolytes, and other essential nutrients than other drinks without causing GI distress, even in the most extreme conditions. It’s also designed to taste like flavored water so multiple bottles can be consumed easily without the dreaded ‘sweetness fatigue.’ This means EFS-PRO can be mixed at stronger concentrations than other drinks and still be absorbed quickly and easily.

    EFS-PRO utilizes a proprietary “Optimal Absorption Technology” to shuttle water, electrolytes and other essential nutrients through the digestive system more efficiently than ever before, so you don’t have to worry about all the negative symptoms of GI distress. It’s under these extreme racing conditions that it’s critical to have a drink mix that can deliver essential calories, electrolytes, and fluid to working muscles.

    DELIVERS 1400mg OF ELECTROLYTES TO PREVENT CRAMPING & DEHYDRATION


    Clinical research shows endurance athletes require much higher levels of electrolytes than most sports drinks provide in order to prevent cramping and dehydration.

    Each serving of EFS-PRO provides 1400 mg of the essential electrolytes endurance athletes need to stay hydrated and maximize performance.

    WE RECOMMEND TOGETHER


    RESEARCH


    CYCLIC CLUSTER DEXTRIN FOR SUPERIOR ENDURANCE & PERFORMANCE

    EFS-PRO delivers a proprietary blend of carbohydrate sources that each offer unique benefits for endurance athletes. These sources work synergistically to achieve optimal performance through varying channels of absorption. The primary carbohydrate used in EFS-PRO is an amylopectin multi-branched cyclic dextrin that’s 100% soluble in water. It’s a high- glycemic carbohydrate that has little effect on insulin and does not inhibit fat oxidation.

    This means athletes are able to sustain hard efforts through the increased use of fats, which allows them to spare essential glycogen. At 150 mOsm, cyclic dextrin is the low- est-osmolality carbohydrate source available and has been clinically proven to have the fastest gastric emptying time of any carbohydrate. This low-osmolality and superior gastric emptying mean athletes can be assured that what they drink goes directly to working muscles immediately. As a result, EFS-PRO can be mixed at stronger concentrations and still be absorbed properly.

     

    SODIUM CITRATE FOR IMPROVED ABSORPTION

    Sodium citrate is absorbed and metabolized into sodium bicarbonate which creates an alkaline solution that reduces stomach acidity and improves absorption. Alkalizing agents have also been shown to improve performance in high-intensity exercise. Sodium citrate has been clinically shown to have the best absorption rates among vari- ous sodium sources. A clinical study done on Sodium Citrate showed that when it was consumed prior to high-intensity exercise it reduced blood pH and oxygen debt in healthy males exercising on a cycle ergometer.

    L-ALANYL L-GLUTAMINE FOR IMPROVED ABSORPTION

    EFS-PRO contains L-Alanyl L-Glutamine because it’s clinically proven to significantly improve absorption of water and electrolytes in athletes under exercise stress and mild dehydration and improve endurance performance.

    This special dipeptide amino acid is a highly-soluble, water-stable source of glutamine that has a number of unique benefits for endurance athletes. Like L-Glutamine, this dipeptide plays a role in the supply of energy, promotes protein synthesis, heals wounds, pro- motes a healthy intestinal tract and also stimulates immune function.

    The alanine component of L-Alanyl L-Glutamine helps stimulate gluconeogenesis (the generation of glucose through non-carbohydrate sources). Clinical studies on L-Alanyl L-Glutamine have shown it improves plasma glutamine by 26% over standard L-glutamine.

    In a study done in the Journal of the International Society of Sports Nutrition, L-Alanyl L-Glutamine and water were administered to college students with induced dehydration of -2.5% while a second group used only water. The group using L-Alanyl L-Glutamine showed a dramatic improvement in their hydration and serum sodium levels. This group also significantly improved their performance in a treadmill exercise.

    Q&A


    Q: What is EFS-PRO?

    A: EFS-PRO is a new energy drink that provides endurance athletes with the nutrients they need to fuel working muscles and increase endurance during exercise. The EFS formula utilizes the latest clinical research on endurance nutrition and input from some of the best endurance athletes in the world.


    Q: Why doesn’t EFS-PRO contain Vitamin C?

    A: EFS-PRO doesn’t contain Vitamin C because the latest research shows that Vitamin C can have a negative effect on endurance and performance when consumed during exercise. Click here for more info.


    Q: What electrolyte can we find in the new EFS-PRO?

    A: There is 500mg of sodium per serving in the new EFS-PRO drink (EFS has 300mg). This represents the highest sodium content in any electrolyte drink on the market. The EFS-PRO formula now offers over 1,500mg of electrolytes coming from all 5 electrolytes, per serving.

    Furthermore, these superior minerals also offer a buffering of stomach acids. DiCalcium and DiMagnesium malate lower stomach acids significantly helping to reduce the unwanted gastric distress that can be associated with other minerals.


    Q: Are there any changes to the amino acids?

    A: The amino acids in the EFS-PRO drinks are AjiPure amino acids, the purest, most- bioavailable source of free-form amino acids available. AjiPure amino acids have purity levels of 99%-100%. This results in faster and more complete absorption.

    Q: When should I use EFS-PRO instead of EFS?

    A: The link below explains when you should use EFS-PRO instead of EFS and visa versa:
    https://firstendurance.com/whats-difference-efs-efs-pro/


    Q: What is L-Alanyl L-Glutamine? 

    A: The EFS-PRO is also fortified with L-Alanyl L-Glutamine which is a highly soluble water stable source of glutamine with some very unique features. This amino acid has been clinically proven to significantly improve the absorption of water and electrolytes in the intestinal tract.


    Q: What is malic acid used for in the EFS-PRO drinks? Why is this important? 

    A: The new EFS-PRO drink contains 700mg of malic acid. Malic acid stimulates oxygen consumption by increasing mitochondrial uptake, improving mitochondrial respiration and increasing energy production. Malic acid is essential in the formation of ATP, the body’s energy source. Malic acid allows the body to make ATP more efficiently, even under low oxygen, or hypoxic conditions. During anaerobic conditions, malic acid has an ability to remove the accumulation of reducing equivalents. Human studies have shown that after endurance training, athletes’ muscles were characterized by a 50% increase in the malate-aspartate redox shuttle enzymes.


    Q: How is the flavor? 

    A: The new EFS-PRO formula went through extensive flavor testing in the most demanding races in the world. We used this extensive feedback to create a flavor profile that mimics flavored water. With practically no sweetness this formula is ideal for those long, hot workouts where sweet drinks simply do not cut it. All formula uses 100% natural flavors and contains NO color. This allows athletes to use EFS not having to worry about staining water bottles.

    REVIEWS


    THERE’S NO REASON TO USE ANYTHING ELSE

    First Endurance offers everything an endurance athlete needs to maximize endurance and performance.  We designed it to work as a complete endurance system. Each product has a specific purpose and complements the others.

    With First Endurance, there’s no more guesswork.