0 items  |  $0.00

Posted By: Rodney Bowen
According to US National Library of Medicine and the National Institute of Health,

"Magnesium is involved in numerous processes that affect muscle function including oxygen uptake, energy production and electrolyte balance...There is evidence that marginal magnesium deficiency impairs exercise performance and amplifies the negative consequences of strenuous exercise (e.g., oxidative stress)."

Extreme Endurance provides magnesium supplementation for endurance athletes

Magnesium is a mineral that plays a critical role in our bodies. In fact, every cell within us depends on magnesium.

Magnesium's importance lies within its ability aid in regulating athlete's heart rhythm, allowing muscles to contract and relax properly, and reducing the user's blood pressure.

Since our bodies cannot produce magnesium, athletes need to ensure they are daily consuming magnesium-rich foods such as whole grain cereals, leafy greens, nuts and seeds (such as: pumpkin seeds). However, even within the athletes working to fuel their bodies with nutritional food to keep their magnesium levels appropriate, magnesium supplementation might be beneficial for those with low a magnesium status.

Magnesium is considered to be one of the top three recommended supplements
that endurance athletes take in order to produce the main source of energy in their cells.

Short falls in magnesium have shown to inhibit an athlete's performance as well as their recovery. Low magnesium levels also attributes to early muscle fatigue, nausea, muscle cramps and even irregular heartbeat during the intense exercise. Competing athletes cannot afford to overlook the benefits magnesium brings to their performance and recovery.

For these athletes, any magnesium deficiency can prevent them from taking their game to the next level.

At Xendurance, we work hard to create natural workout supplements to fuel an athlete's body.

Magnesium is one of eight ingredients in Extreme Endurance that has been proven to improve performance as it is vital in more than 300 chemical processes that sustain basic human health and function, muscle contraction and relaxation, nerve function, cardiac activity, blood pressure regulation, hormonal interactions, immunity, bone health and synthesis of proteins.

Magnesium nutrition is an area our family of champion athletes realize they cannot afford to overlook.

Extreme Endurance | Buffer Lactic Acid, Improve Aerobic Threshold

Posted By: Rodney Bowen
Congratulations to all the winners of The Athlete Games 2016 as well as all the competitors.

The Athletes Games Champions

What an amazing weekend we all had at The Athlete Games Finals took place at the ExCel Arena – London, UK on January 29-30, 2016 as we witnessed 120 athletes compete to see who would be victorious and take home their share of the €50,000 prize purse!

And, a very special thank you goes to all of the judges, volunteers, vendors and (of course!) that fans, who came out to support the athletes.

The Athlete Games Judges & Volunteers

Have you checked out the full Athlete Games 2016 Leaderboard?

Do you think you have what it takes to compete? We can't wait to throw down again, and we hope to see you there next year!

The Athlete Games 2016 Competitors

In the meantime, please feel free to take a moment to check out the over 600 photos we captured from The Athlete Games 2016 event.

pic: RX'd Photography

Posted By: Rodney Bowen
Xendurance is thrilled to see such amazing work from our friends and athletes!
These amazing faces of hard work have kicked 2016 off to a great start.

Posted By: Rodney Bowen
Watch 100-mile American record holder, Zach Bitter,
share about his personal fueling strategy that he uses to train and race.
Zach Bitter - Fueling Strategy to Train and Race

California ultrarunner and Xendurance athlete, Zach Bitter successfully lowered his own American record for the 100 miles on December 19, 2015 at the Desert Solstice Track Invitational in Phoenix, AZ. Watch the video to hear how Zach cruised around the track at the invitational at Central High School to run 7:00 miles per mile for the 100 miles and finish the race with his new American record in 11:40:55.

Video Transcript - Zach Bitter:

"First of all, I like to use Extreme Endurance in my training and racing. Basically, I'll take three (3) of these in morning and three (3) of these at night as a way to buffer lactic acid and leave me feeling more fresh and less sore after a hard workout. I like to use Hydro X as an electrolyte supplement, and I like to use Fuel 5 as a way to sneak carbohydrates in my training to give me an extra boost.

So, I follow a low-carbohydrate diet most of the time. The idea there is that I am optimizing my ability to metabolize fat. But, I also use carbohydrates very strategically in training and racing on some of the longer, harder training sessions, I will sneak in carbohydrates as a way of giving me that high octane fuel source. And on race day, I'll do the same.

On those type of workouts, I'll usually do a scoop of Fuel 5 during the workout. If it's a really long, I'll probably do two scoops. I really like this product because if has five (5) souces of carbohydrate that all release at varying times, so I get that quick burst of energy as well the long-sustaining burst of energy from the slower carbohydrate.

The Hydro X - I will use a lot more frequently in my trainings especially on hotter days when I am trying to replace those electrolytes. I'll usually do a scoop of Hydro X before and maybe a scoop ruing a long, hard effort.

At Desert Solstice, my go-to strategy was 1/2 bottle of water with 1 scoop of Fuel 5 and 1 scoop of Hydro X. It was relatively cool at Desert Solstice, so I didn't need more than 1/2 a bottle.

If it is a hot day in training, I would definitely go a full bottle of water with a scoop of HydroX and a scoop of Fuel 5 if I am trying to sneak those carbohydrates in on that workout."

Posted By: Rodney Bowen
Let's face it, the cold and flu is upon us, so we must work to ensure our immune systems are up to the challenge. Especially if you are training to boost your endurance as you work toward the next personal record, you need additional immune-system support.

As an endurance athlete, by nature of your training, put yourself in danger of a decrease immune response. The stress of training and competition has a great impact on our ability to fight infection. Intense training can further depress the immune system.

Xendurance's Immunity Bundle is a great stack to
help your defenses and boost your immunity.

Xendurance Immunity Bundle

Extreme Endurance
Extreme Endurance is a revolutionary athletic performance formula created by athletes for athletes. This formula has a published, Gold-Standard, third party, double-blind, placebo-controlled, crossover study backing up claims of 15% reduction in lactic acid and a double digit increase in aerobic threshold. Many companies make claims on individual ingredients but Extreme Endurance has a published study on the formula itself. Each batch of Extreme Endurance is tested to ensure that it is not contaminated with banned substances to provide additional reassurance for elite athletes.

Omega contains one of the highest dosages of EPA (600 mg) and DHA (400 mg) on the market today. Balanced fatty acids, particularly EPA and DHAs found in fish oil, are essential for normal brain function, cardiovascular health, joint movement, immune function, healthy skin and anti-inflammatory benefits.

•Promotes cardiovascular health and wellness.

•Reduced inflammation from arthritis and better joint function.

•Promotes healthy skin and eyes.

•Supports normal brain function.

Benefits the immune system.

Immune Boost
Daily multi-vitamin for men & women, optimally formulated to help nourish cells, tissues and body organs against damaging free radical attacks. Immune Boost is a comprehensive formula of vitamins, minerals, antioxidants and phytonutrients specifically chosen to help assist the immune system and provide steady nutrient support.

Immune Boost is a powerful, daily multivitamin, antioxidant-phytonutrient formula engineered and built with pharmaceutical grade nutrients to maximize the bodies' ability to build and maintain a strong immune system.

During moderate and strenuous workouts, your body goes through several internal disruptions including increased body acid, micro muscle tears, trauma to the muscles, inflammation and severe oxidative attacks. Immune Boost was built to help protect against these severe internal disruptions.

Help keep your immune system strong and make Immune Boost your #1 daily supplement!

Posted By: Rodney Bowen
As soon as you finish one training day you need to start getting ready for your next training day.

Protein can be your proving ground for excellence. According to the US National Library of Medicine, protein is one of the most popular dietary supplements recommended to athletes and physically-active individuals.

Protein supplements reportedly help…

  • to enhance nitrogen retention and increase muscle mass,
  • to prevent protein catabolism during prolonged exercise,
  • to promote muscle glycogen resynthesis following exercise, and
  • to prevent sports anemia by promoting an increased synthesis of hemoglobin, myoglobin, oxidative enzymes, and mitochondria during aerobic training.

Xendurance Protein - Amazon store

Formulated for greatness, our Xendurane recovery Protein helps support lean muscle growth. Our blend contains four types of protein (Whey Protein Isolate, Whey Protein Hydrolysate, Micellar Casein and Calcium Caseinate) and 18 amino acid profile. Xendurance Protein is among the most inclusive recovery products on the market that contains all needed BCAAs, Electrolytes, B vitamins, D3, 1.5g Lactate(energy) sweetened with organic cane sugar and raw coco.

Xendurance Protein has been the proving ground of excellence for these customers:

"If you wanna look like THOR, this product is a must have!! As former high school and college athlete I've tried a lot of protein over the years. Results have varied, but Xendurance Protein is by far the best and most effective protein I have ever taken. I'm hooked and wont be changing products anytime soon!"

"You shouldnt have to choose quality or taste, thats what i love about this product. I know it is the best quality wise and it tastes amazing. best of all I dont feel my stomach bloat after like I do with alot of proteins. I can use it as a meal supplement as well and not just for training so I feel like i really get my moneys worth"

"I have been hesitant to try a new protein as I have loved the one I previously used. However, I was recommended this product by a friend because he loved their other products so much. It did not let me down. It has all the essential amino acids needed to help rebuild muscles after a tough workout. Fantastic taste as well!"

"High quality protein is the only way to go! Definitely won't ever waste my time trying Progenex. Although, they have tons of flavors, it is FILLED with sugar. This chocolate protein is bomb with Fuel-5 carb protein. Literally a yummy berry-chocolate blend in your mouth. #yum"

C. Wernick:
"I am a professional triathlete and use this recovery protein daily when I am training hard. It's a great way to get the proper amount of protein I need for recovery and it tastes great."

Posted By: Rodney Bowen
Every rep counts…and that is why Xendurance is committed to help.

Xendurance's revolutionary athletic performance formula is perfect for those days you feel pushed and for those you need to push back.

Clinically proven to improve performance and recovery during high intensity training with our tried & tested product formulas and advanced ingredients built to boost your workouts and performance, Xendurance Products are here to help you push your daily limits and achieve elite results and keep you healthy year-round.

Case in point:
Read what others are saying about our Creatine-JB supplementation and how its has greatly improved their areas of maximum strength and endurance


Amazon Customer:
"Xendurance... So much wow. Before Xendurance I was but a young lad...My endurance hath now doubled if not tripled during my workouts. My GAINZ hath increased at an alarming but pleasant pace. The results from this product are results I only thought possible in a dream, But alas that is not true. I thank Xendurance for making my dreams cometh true."

"Best creatine on the market. Everyone assumes that creatine is a protein that "bloats" people. I am competitive female CrossFitter that can attest that this creatine does not "bloat" me whatsoever. In fact, it actually helps with my face break outs and helps regulate hormones. I recommend ALL my lady clients & male, (of course), to take this product religiously."

"Xendurance Creatine has allowed me to train with high volume while gaining strength. The creatine formula used does not cause bloating and helps with not only muscle strength but muscular endurance is also increased. I would recommend Xendurance creatine to anyone trying to increase their fitness level."

"I started using Creatine JB about 6 months ago. I am amazed at the muscle gains i have experienced as well as my increased endurance with my workouts. I have tried tons of products and this is the best one out there. Thanks Xendurance for this great product. I love it!!"

Posted By: Rodney Bowen
Our first responsibility and passion is to the athlete, to you. We founded Xendurance on the idea that we can use high quality ingredients with clinically proven product formulas to help you reach your potential.

We believe you can run faster, lift heavier, go farther.
We believe that showing up and doing your best counts as a win.
We believe your PB is not always your PR.
We believe you should be having fun with your fitness.
We believe in testing, re-testing, and testing again.
We believe in integrity and honesty.
We believe if you work hard you will always be better than you were yesterday.
We truly believe that your only limits are self imposed.


We, at Xendurance, work hard to ensure our clinically-proven product formulas and advanced ingredients are built to help boost your workouts and performance, so you may push your daily limits and achieve elite get out there and do great things.

Thank you to all who have have take the time to leave reviews of our Xendurance products. Your feedback and encouragement is so appreciated. We love to hear how Xendurance is helping you in real time. We really do appreciate your encouraging words that push us forward to continue our work and development for excellence.

You choose where you're going. We will be with you every step of the way to help you achieve your goals.

Look what some are saying about Fuel 5:

Xendurance Fuel 5 - supplement reviews product review

This is my favorite carbohydrate supplement, and my favorite xendurance product. I mix 2 scoops of the fuel5 and 1 scoop of the xendurance recovery protein as a pre workout. My energy during the workout has never been better. My recovery is going through the roof. I love it. I also recommend using it during your long competetors training sessions. No other intra-carb is better, Fuel5 is the real deal.

Using fuel 5 for pre and post workout has helped me in the gym more than any other thing I have added to my training. On days where I feel sluggish I get enough energy from the short range carbs, and can keep moving due to the long range ones. I love that it has no stimulants and is so clean too! Definitely recommend to everyone in the fitness world.

Amazon Cust:
Clean energy!! I am able to sustain my energy throughout my workout as the 5 different carbohydrates breakdown at different times. I love that it is stimulant free and it is also great for my recovery after my workouts.

Better than any other carb supplement I have tried. I love that it is non-gmo and they use organic sweet potato. clean product that tastes great!

=> Shop Xendurance on AMAZON

Posted By: Rodney Bowen
A finished workout is only the beginning. Proper nutrition is key to refueling, rehydrating and rebuilding your muscles after your endurance workouts.

When athletes deplete their bodies to the point of physical and mention exhaustion, their work is not completed. They must replenish all that their bodies expended.

The rehydration, restoring and repairing of muscles will be key in a healthy post-workout recovery 30-45 minutes immediately after exercise to replenish and recharge your body after all that you just put it through.

Proper recovery is essential for any athlete to fuel your muscles after working out. It is vital to their growth.

Like Josh Bridges, your consuming Xendurance Recovery Protein immediately after your training session will initiate the rebuilding of damaged muscle tissue and restoration of energy reserves.

Rebuild, recover, come back stronger.

Xendurance PROTEIN - Amazon store

Posted By: Rodney Bowen
On December 29, 2015, Zach Bitter returned to the Desert Solstice Invitational Track Meet in Phoenix, AZ to break his own 100-mile American Open Track Record in 11:40:55. For those tabulators at home, that's a 7-minute mile…for 100 straight miles!

"I went to [Desert Solstice] hoping to take a shot at the 100 mile world record. I felt like I put myself in good position, but fell short from a muscle strength standpoint the last 15 miles. ..I certainly can't complain about a PR or American Record for the effort and am extremely grateful for my crew-chief Rich McKnight, Jamie Courty and Arivaipa staff and volunteer soft putting on a top notch event." - Zach

Considered the fastest American in the history of long distance ultra running, Bitter (29 years) did what no other American athlete has been able to accomplish to date in his breaking his own record set in 2013 on the Central High School track, by almost 7 minutes, proving he is still America's best ultra runner in time, loop and track events. Ultrarunning - a running discipline that accounts fro any distance longer than a standard marathon - is growing rapidly, both in the U.S. and worldwide.

How does Zach Bitter train to break his own American 100-Mile run Record?

"With training weeks reaching 20+ hours, a full time job, and long efforts on race day, I need a healthy diet with the right supplementation to ensure proper recovery and progress. Extreme Endurance is one of the critical pieces to my recovery and workout regimen. Some of my favorites include: Extreme Endurance, Immune Boost, Extreme Omega, and Extreme Joint."

"I won't train without these products" - Zach Bitter
Zach Bitter's Favorite Xendurance supplements

»4 3 2
Page 1 of 10
98 records found.