Nutrition

Created for daily use before and during training and competition, the new GU Energy Stroopwafel delivers all the nutrients needed to power your performance: quality carbohydrates (immediate and long-lasting energy from complex and simple carbohydrates), essential amino acids (prevent mental fatigue and repair muscle damage during long-duration activities), and electrolytes (replenish what’s lost when you sweat). The Stroopwafel is made with a layer of delicious syrup between two thin wafers, and it’s individually packaged to make it portable and easy to take on a ride or run.

Skratch Labs Sport Energy Chews are made with simple ingredients and flavored with only real fruit to create an energy chew with a clean bite that isn’t coated in wax. The result is a subtle taste that lets you fuel your active lifestyle with a functional food.

Fuel for Every Day A thin layer of honey sandwiched between two thin waffles. Our waffles will satisfy your taste buds and keep you going as an afternoon snack, during your favorite activity or go great with your cup of coffee or tea. The Original Gluten-Free Waffle For years, similar waffles have been sold on street corners throughout Europe and eaten by professional cyclists, so we decided to create our own by sandwiching honey between two thin waffle wafers. Honey Stinger Gluten-free Waffles are the first product of their kind that's certified gluten free and available in a single-serving wrapper. When to Consume Honey Stinger Waffles are the perfect snack to help you prepare and perform for all activities. The energy in waffles is released immediately and absorbed at a steady rate, which delays muscle fatigue and gives your body the power to achieve your goals. With the right balance of delicious honey-powered carbs, you’ll be counting the minutes until it’s time for the next one. Nature's Energy Source Honey is rich in carbohydrates, making it ideal fuel for working muscles. When eaten before activity, it is released into the system at a steady rate throughout the activity. Helps muscles stay nourished longer during exercise and delays fatigue. Research shows ingesting a combination of carbohydrates and protein immediately following exercise refuels and decreases muscle soreness.

The Perfect Energy Fuel Honey Stinger Energy Chews are formulated specifically for health-conscious individuals and athletes seeking a great tasting energy snack. These bite-sized chews include 70% RDA of Vitamin C and natural energy from honey. When to Consume Honey Stinger Chews are the bite-sized energy solution that helps you prepare and perform your best. These honey-powered chews release energy instantly and delay muscle fatigue by providing fuel that lasts. Chews are perfect for smaller, more frequent bites that taste great and are proven to work. Fruit Smoothie As Honey Stinger’s most popular energy chew flavor, our Fruit Smoothie blend includes cherry, orange and berry. A perfect option for those who can’t decide on just one flavor. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Cherry Blossom This classic cherry flavor will satisfy your taste buds. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Pomegranate Passionfruit Rich pomegranate and passionfruit flavors that are sure to make your mouth water for more. Not too tart and not too sweet, with just the right amount of goodness. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Orange Blossom A classic flavor for everyone to enjoy, our Orange Blossom Chews are wildly popular. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Pink Lemonade Enjoy the taste of summer all year long with Honey Stinger’s Pink Lemonade Chews. Using natural pink lemonade flavors to create the perfect mixture of sweet and tangy that everyone loves. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Strawberry As one of the three flavors in our best-selling Fruit Smoothie Chews, Strawberry is the number one requested chew and now available as its own flavor. These chews are sure to awaken the taste buds. Sweetened with organic honey and tapioca syrup, these chews provide a natural and sustainable source of energy with multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Caffeinated Limeade As Honey Stinger’s first caffeinated chew option, Limeade offers the taste of fresh lime and citrus burst without being too tart. Caffeinated with 32mg of white tea extract per package, comprised of 95% organic ingredients, and sweetened with organic honey. These chews provide a natural and sustainable source of energy with that extra boost of caffeine and multiple carbohydrate sources: glucose, fructose, maltose and sucrose. Caffeinated Cherry Cola Adding to Honey Stinger’s line of caffeinated chews, the Cherry Cola flavor offers a classic and refreshing taste that everyone will love. Caffeinated with 32mg of white tea extract per package, comprised of 95% organic ingredients, and sweetened with organic honey. These chews provide a natural and sustainable source of energy with that extra boost of caffeine and multiple carbohydrate sources: glucose, fructose, maltose and sucrose.

- Use: Ideal for endurance training sessions - Increase the body's ability to adapt to high levels of physical stress - Increase VO2Max - Improves the body's ability to utilize oxygen more efficiently - Increase anaerobic threshold - Reduce lactic acid

Women and men require different nutrition, especially during and after exercise when physical stress is at a maximum. Clif’s Luna Bars are made specifically to meet the demands of women’s bodies. Extra calcium and Vitamin D provide the building blocks for healthy bone density, while soy protein nourishes and repairs tired muscles. 24 vitamins and minerals, including anemia-busting folic acid and iron, boost the immune system and cell function. Luna Bars are made from high quality, 70% organic ingredients and contain no hydrogenated oils or artificial flavors.

GOODBYE ACHY JOINTS & MUSCLES HALO accelerates joint recovery, reduces exercise-induced inflammation, and reduces downtime following overuse injuries. HALO provides comfort to muscles and joints that are sore and aching so you can train harder and recover faster. - Increases joint health & comfort* - Reduces inflammation & soreness* - Accelerates joint & muscle repair* *exercise-induced or following-exercise US PROVISIONAL PATENT #63229703 SO EFFECTIVE WE PATENTED IT Most everyone has heard of the benefits of curcumin, and plenty of athletes have tried it with little or no success. The main reason is because curcumin is very unstable. It spontaneously breaks down in the body before it gets where it needs to be to work. The technology that makes HALO special wasn’t available so we developed it. The key to realizing the benefits of curcumin is our proprietary Superba2® phospholipid delivery system that protects the curcumin from your body’s natural tendency to deactivate it, and allows it to be delivered and absorbed effectively. THE CUMULATION OF 18 YEARS OF RESEARCH WE CRACKED THE CODE Our proprietary delivery system not only protects the curcumin by keeping it stable in the body, it also allows it to be absorbed and delivered to where it works - inside cell membranes. The key to making curcumin effective is Superba2®, a special krill oil that protects curcumin from your body's natural tendency to deactivate it, and delivers both the curcumin and omega-3 phospholipids to cell membranes much more efficiently than fish/algal oils of any strength. Superba2® is uniquely compatible with cell membranes, so - even compared to other phospholipids - it reduces the process for membrane uptake from around 20 steps to 3-4 steps, getting curcumin and omega-3s where they need to be more efficiently, get fully absorbed, and produce anti-inflammatory effects. IMPROVES JOINT MOBILITY AND COMFORT REINFORCE THE WEAKEST LINK Joints and muscles bear the brunt of endurance training abuse. HALO’s Curcuminoids and Omega-3 phospholipids reduce late-onset soreness, exercise-induced inflammation, downtime following falls, and the impact of lingering minor injuries by signaling the musculoskeletal system to kickstart repair and adaptation processes, providing comfort to muscles and joints that are sore and aching from training or overuse. THE 95% PENALTY 95% of the population is deficient in omega-3s. That’s compounded by endurance exercise, impacting performance, mental processes, and recovery. Cardiovascular, cognitive, musculoskeletal—virtually no major body system is unaffected. Superba2™ omega-3 phospholipids are bioidentical to your cell membranes, so they don’t require additional processing steps for uptake. By improving membrane function, HALO supercharges endurance exercise capacity and energy production. DON’T LET ANYTHING SLOW YOU DOWN Almost every athlete has had training derailed by a nagging minor injury. That’s why we developed HALO, a proprietary combination of Curcuminoids, Astaxanthin, and Omega-3s that contributes to a full-body training foundation. More intense training, more effective recovery. FULL SYSTEM PROTECTION Omega-3s and curcuminoids efficiently populate cell membranes, where they are precursors and enhancers for signaling molecules that help maintain normal, healthy musculoskeletal tissue integrity and cardiovascular, cognitive, and immune functions. By managing inflammation-triggering enzymes and supporting cell membrane function throughout the body, HALO helps keep critical systems at peak efficiency to respond to your body’s need to perform. SOURCED FOR EFFICACY, PACKAGED FOR PROTECTION From the Superba2™ krill oil to the 95% pure curcuminoids from turmeric rhizomes, HALO’s effectiveness is rooted in its premium formula. Every component is sourced to maximize uptake and effectiveness, and the active ingredients are packaged in an amber glass bottle, which stabilizes and preserves notoriously vulnerable ingredients. A COMPREHENSIVE PERFORMANCE SYSTEM The overlapping, system-wide nature of HALO’s performance benefits aligns with First Endurance’s comprehensive approach to endurance athletics. Our line of supplements supports every aspect of endurance training rather than just supplying sugar and salt during exercise and protein during recovery. HALO, MultiV, and Optygen are the equivalent of building a base of fitness, ensuring your body’s infrastructure is equal to the exertions and stress of dedicated endurance training.

Breaking a sweat? Grab some Nuun Sport! When you sweat, your body loses vital minerals and electrolytes that need to be replaced for healthy recovery and lasting performance. Nuun Sport provides a great balance of ingredients for mineral replenishment and optimal hydration before/during/after your workout. - 10 tablets per tube, 4 tubes per pack. Dissolve in 16oz. of water. - These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. - The Conservation Alliance flavors: Lemon Lime, Fruit Punch, Tri-Berry, and Strawberry Lemonade - People for Bikes flavors: Wild Berry + Caffeine, Fresh Lime + Caffeine, Watermelon, Citrus Fruit

- The perfect meal replacement option for days on-the-go, or activities when you just can't (or don't want to) stop, this portable food is the perfect solution - Nutrient-dense calories that deliver lasting energy - Blended, not baked, with chunks of real fruits, nuts and seeds - for fantastic taste and texture - Responsibly sourced - 12 servings - USDA-certified organic - Gluten-Free - Kosher - Non-GMO - Vegan

- Use: Recovery formula - Rapid and complete endurance recovery formula - Refuels exhausted muscles and restores energy levels quickly - Delivers endurance-specific nutrients for superior recovery and maximum performance

- Use: Recovery formula - Rapid and complete endurance recovery formula - Refuels exhausted muscles and restores energy levels quickly - Delivers endurance-specific nutrients for superior recovery and maximum performance

HIGH-OCTANE PR FUEL A potent additive that primes body and mind for demanding workouts and races. Lower perceived effort, optimized energy use, sharper focus – PreRace catalyzes more days without limits. KEY BENEFITS - Increases energy & time to exhaustion - Supercharges circulation & oxygen delivery - Enhances focus & motivation PREPRACE CLINICAL STUDY ON A 40K TIME TRIAL South Dakota State University conducted an independent study on the original PreRace formula to determine its effectiveness on cycling endurance. The double-blind placebo-controlled study used seven trained cyclists in a 40K time trial. Each cyclist performed two 40K time trials. On the first TT, the cyclist consumed either a placebo or PreRace mixed with one serving of EFS 30 minutes before doing a 40K TT. One week later each cyclist would switch the protocol and receive the opposite of what he/she received the previous week. HERE'S YOUR SECRET WEAPON With the ideal balance of caffeine and taurine, PreRace 2.0 lets you stay in the red longer and with less perceived effort. The new formula also enhances ATP production and mobilizes fat for additional energy, conserving glycogen so you still have fuel in the tank when everyone else is empty. KEEP YOUR HEAD IN THE GAME All the sacrifice and hard training you do means nothing if your focus and motivation slip at the wrong time. The completely redesigned PreRace formula improves alertness, increases motivation, and sharpens mental acuity. Don’t just react; take control. BUILT FOR SPEED The theory behind PreRace is simple: combine a suite of active ingredients that, separately, improve physical and mental performance. We combined the stimulating, motivating cognitive effects of nootropics like taurine, caffeine, and theobromine with Nitrosigine®, a patented vasodilator that boosts nitric oxide (NO) levels for increased blood flow, focus, and energy to create a synergistic formula unlike anything else available. NEXT-LEVEL POWER AND EFFICIENCY Stimulating the Nitric Oxide (NO) system is clinically shown to increase blood flow, clear lactate, and deliver more oxygen and nutrient-rich blood to working muscles. With Nitrosigine®, a non-nitrate vasodilator, PreRace fires the afterburners without blowing up your heart rate, keeping your engine running hotter, and longer, with less recovery time between demanding efforts NEVER STOP IMPROVING PreRace 2.0 delivers one more new active: VitaCherry® Sport anthocyanins, a tart cherry extract that further increases pace relative to perceived exertion while shortening recovery time to maintain a higher level across multi-day events or peak training periods. Did the original PreRace work? Yes. Did we need to improve it? No. Did that stop us? Absolutely not. There’s still nothing else like PreRace on the market, we just saw an opportunity to make it even better.

When you’re pushing yourself on the trail or road, you need an easy way to get both the hydration and energy you need to avoid bonking, stay energized, and keep competing. ROCTANE Energy Drink Mix is a carbohydrate intensive energy drink to help push the limits during ultra-distance and intense efforts. It contains the critical carbs and electrolyte replenishment that endurance athletes need to compete at high levels. - ROCTANE Energy Drink Mix is specifically formulated for the demands of long-duration and high-intensity activities. - Formulated with a blend of simple and complex carbohydrates, electrolytes, and BCAAs, ROCTANE Energy Drink Mix provides 250 calories per serving. - Carbohydrates (maltodextrin and fructose) that use non-competing pathways which can help maximize absorption, increase carbohydrate utilization, and diminish stomach distress, so you get energy that kicks in quickly and stays with you. - Sodium, the primary electrolyte lost in sweat that aids in hydration by maintaining fluid balance - Branched-chain amino acids (L-Leucine, L-Valine, and L-Isoleucine) which may reduce mental fatigue and decrease muscle damage while jump-starting recovery - Taurine can help maintain heart contractility and improve cardiac output during long exercise sessions

Fuel for Every Day Our classic honey waffles, now in a snackable size and a resealable bag. With a thin layer of honey sandwiched between two waffles, this favorite snack will satisfy your taste buds and keep you going as an afternoon snack, during your favorite activity, or with a cup of coffee. The Original Energy Waffle, Snackable-Size For years, similar waffles have been sold on street corners throughout Europe and eaten by professional cyclists, so we decided to create our own by sandwiching honey between two thin waffles. Honey Stinger Organic Waffles are easy to digest, certified organic and now available in a snackable size. When to Consume Honey Stinger Mini Waffles are the perfect snack to help you prepare and perform for all activities. The energy in waffles is released immediately and absorbed at a steady rate, which delays muscle fatigue and gives your body the power to achieve your goals. With the right balance of honey-powered carbs in a bite-sized format, you can fine-tune your fuel for your needs. Nature's Energy Source Utilizing an ingredient engineered by nature as opposed to in a laboratory has its benefits, like higher quality and no additional flavoring or coloring. We use honey, a natural form of energy and antioxidants, as the main carbohydrate source for all products. Research in endurance athletes has proven that a mixture of carbohydrates is better tolerated by the body, prevents fatigue and enhances performance more than a single carbohydrate form.

MANA [ma-na] (n.) the power of the elemental forces of nature embodied in an object or person. To have mana is to have great authority, presence, or prestige. The Mana Superfood Bar provides on the go nutrition from some of the healthiest ingredients possible. Developed over 24 months, tested with countless athletes in triathlons, motocross, cycling, and in functional fitness, it is the perfect snack to energize your activity. Inspired by the wild harvests of the Bolivian rainforests and crafted from quality real foods, the Mana Bar is an incredible superfood bar that provides healthy fats while also being light and satisfying hunger. All the fuel and none of the weigh-down. Join the adventure! - 100% Non-GMO ingredients, Pea Protein Isolate, Organic Honey, Organic Peanut Butter, Organic Sugar, Organic Almond Butter, Flaxseeds, Chia Seeds, Quinoa, Gluten-Free Rolled Oats, and Himalayan Pink Salt - 190 calories per bar - 10g of high-quality plant protein - 6g of organic sugar - Gluten Free

FASTCHEWS feature a scientifically-derived, proprietary high-performance formulation that provides a balanced supply of bioavailable sodium, potassium, magnesium, and calcium. Sodium is derived from sodium citrate, a proven source that has the added benefit of soothing the stomach. The formulation mirrors the electrolyte profile lost in sweat, in a form and quantity the body can absorb. Its non-GMO ingredients are all-natural, gluten-free, vegetarian, and without artificial sweeteners or colors. Rapid absorption takes place by mouth (buccal mucosa, and then the stomach). Ease of access is assured in a convenient moisture-resistant roll-wrapped format. This "Green" product generates little trash. - FASTCHEWS Help Reduce Muscle Cramping, Reduce Heat Stress, Boost Stamina, Maintain Electrolyte Levels - The ONLY chewable tablet that is formulated to closely resemble the electrolyte profile lost in sweat - Suggested use: 2 tablets per 15-30 minutes during activity - Fast absorption through buccal mucosa (tissue in mouth) - Each serving (2 tablets) contains: 100 mg sodium, 30 mg potassium, 10 mg calcium, 6 mg magnesium - Tart Orange and Zesty Lemon-Lime natural flavors encourage consumption - Bio-available active ingredients. Made in USA under cGMP (current Good Manufacturing Practice) - Ingredients are: non-GMO, gluten-free, vegetarian, fat-free - Natural stevia as sweetener. No color added - Also great for youth sports, travel rehydration, tennis and other sports, camping & hiking, effects of alcohol

Created primarily for hydration, GU Hydration Drink Tabs offer the athlete a low-calorie drink option. GU Hydration Drink Tabs are reformulated with xylitol to help reduce gastrointestinal distress when compared to sorbitol. Sodium, the primary electrolyte lost in sweat, helps maintain water balance. Use GU Hydration Drink Tabs before, during, and after exercise to hydrate and replenish electrolyte levels.

- Made with real ingredients such as fruits, nuts and quinoa for fuel and muscle building - Less sugar than traditional leading energy bar brands - Enough fuel to power you through endurance workouts and tasty enough to use as a snack any time of day

The official bar of Ironman and USA Cycling - Simple, real food for real flavor - Certified gluten and dairy free, paleo friendly, and includes 9-12 ingredients that are recognizable and easy to pronounce

Motivation enhances mental and physical performance. It is made with a safe and effective synergy of natural energizing ingredients and is great to keep pace for hours without mental fatigue. Tyrosine is a rare but safe ingredient we use that is shown to improve performance under stressful conditions. The Guarana Seed Extract is released slowly over as long as four hours to give you sustained energy rather than the quick boost you get from coffee or other drinks. - All natural energy formula - Replace costly and unhealthy coffee drinks - Sustained energy without spikes and crashes - Banned Substance Free - Made with all natural veggie capsules

SaltStick Caps Plus are full-spectrum electrolyte capsules that have been engineered to replace sodium, potassium, calcium, magnesium lost in sweat, in a form and quantity that your body can use. Stomach-soothing sodium citrate along with 30 mg of caffeine pack a solid performance benefit, with a recommended dose of 1-3 capsules per hour. These unique capsules help minimize muscle cramping and heat stress during training and endurance events. Vitamin D has been added to aid in calcium absorption by the body. The capsules are vegetarian, gluten-free, GMO-free, and contain a balanced and buffered mixture of electrolytes with nothing unnecessary added. The formulation provides unparalleled support for challenging conditions, and have been used to help athletes win major endurance events worldwide.

Under the weather or on-the-go? Grab some Nuun Immunity! When your body is stressed with travel or fighting an illness, hydration and botanicals are crucial for maintaining immune health. Nuun Immunity is a potent blend of electrolytes, anti-inflammatories, and antioxidants that provides total immune system support. - 10 tablets per tube. Dissolve in 16 oz. of water. - These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

- Creamy nut butter nougat filling coated in caramel and rolled in crunchy nuts and seeds - Each bar contains 16g of protein and is rich in antioxidants to help recover from a workout, or to eat as a healthy snack - Salty, sweet, and savory, Nut + Seed bars provide energy and protein whenever you need it

- Daily consumption of collagen promotes long-term joint health, consistent use contributes to resilience against injury as well as regeneration of cartilage and tendons, and assists hair, skin and nail health - If you’re sick of messy powders and lugging around tubs of supplements, Collagen Shot is right up your alley. It’s the FIRST collagen gel that’s both easy to use and great tasting. Not only is it mobile and user friendly, it also delivers results - Momentous Collagen Shot provides type I and III collagen. Clinical evidence shows consuming collagen 30-60 minutes before training increases collagen synthesis in tendons and ligaments - When taken one hour before exercise - research has shown that the combination of collagen and Vitamin C doubled the levels of amino-terminal propeptide, a key indicator of collagen synthesis

Extra Performance Kick As the core of the Honey Stinger Gel line, our Gold formula is great for the honey purist. Containing 95% honey, added electrolytes and B vitamins, our original Gold Gel is a proven favorite among endurance athletes for nearly a decade. More Versatile Than Other Gels Honey Stinger Classic Energy Gels may be consumed straight from the packet before or during activity, spread on toast, stirred into tea, or anything else you can think of. All flavors mix well with water to make a natural energy drink. When to Consume Honey Stinger Gels are optimized for efficient fueling before and during athletic efforts. Gels provide instant, honey-powered energy that lasts, which delays muscle fatigue and gives your body the power to achieve your goals.

Tasty, Portable Energy for Athletes GU Original Energy Gels pack quick, effective, and sustained energy to meet the demands of all types of activity, in a convenient packet small enough to fit in your pocket. - GU Energy Gels are crafted to supply both energy and key nutrients like electrolytes and amino acids to keep you feeling strong and energized - Provides quick, effective, and sustained energy to meet the demands of all types of activity - All energy gels are Vegan, gluten-free, and Kosher - Available in caffeinated and non-caffeinated flavors. Caffeinated flavors come with either 20mg or 40mg of caffeine

Skratch Labs Sport Recovery Mix is a high calorie food that you can drink. It’s designed to be a very convenient way for you to consume a lot of delicious calories with an optimal ratio of carbohydrate, protein, fat, and salt to refuel and rehydrate you immediately after your longest and hardest workouts when you don’t have access to a freshly prepared meal from scratch.

Get back in the game faster with Recovery, the most comprehensive blend of high quality Amino Acids available. Containing the 12 most important amino acids instantized for immediate use, this unique formula is designed to stonewall the breakdown of muscle tissue and delay physical and mental fatigue. Pharmaceutical grade essential amino acids and nitrogen transporters provide faster recovery times, increase energy, and reinforce the immune system. - THE AMINO ACID KEY - BCAAs, EAA's, AKG's, and more make up the 12 amino acids in Recovery to provide significant muscle regeneration - ENHANCES YOUR PERFORMANCE - Prevent catabolism, increase strength and stamina, and maintain muscle growth to stay healthy and active - UNIQUELY FORMULATED FOR THE EVERYDAY ATHLETE - Safe for all ages and all stages of training - Banned Substance Free - Made with all natural veggie capsules

Carbo-Fuel is quality fuel, immediate and sustained energy, and recovery nutrition for all of your athletic needs. Tasteless and colorless, it mixes easily in any juice or water. It works perfectly for carbo-loading before an event, as well as replacing muscle glycogen immediately after each training session. If protein, vitamins, and minerals are the building materials for your body, think of Carbo-Fuel as the gasoline for your body. Carbo-Fuel can be taken 30-40 minutes before activity for lasting energy without being weighed down by a heavy meal from traditional carbo-loading. You will not want to work out another day without it! - The cleanest source of sustainable energy for before, during, and after your activity - Easily carbo-load before you train or compete, and continue drinking your Carbs throughout the day - Sustained energy throughout competition and training - The same complex Carbs found in Brown Rice, but immediately and easily accessible - Aids recovery by replenishing Glucose levels after strenuous training to reduce stress and fatigue

- A drink mix with all the electrolytes and just a hint of flavor for hydrating all day long - Incredibly low osmolality means easy digestion without disruption - Hint of flavor from real fruit that won't wear out your taste buds during long or hot days - The clearest, cleanest, most refreshing way to get the electrolytes you need