Why dual-pathway carbs?
Most sports drinks use a single carbohydrate source. The problem is that your gut has a fixed absorption rate for any single carb, typically 60g per hour. That's why high-carb drinks cause GI distress: you're overwhelming one pathway.
Salty Carbs uses maltodextrin and fructose together. They absorb through two completely independent pathways, SGLT1 and GLUT5, which means your total absorption rate increases significantly without overloading either transporter. More fuel to muscles. Less undigested carbs causing problems.*
The 1:0.8 maltodextrin-to-fructose ratio is the same used in peer-reviewed endurance research. It's not a marketing claim. It's applied sports science.*
Studies show dual-carb formulas can increase carbohydrate absorption by up to 75% compared to single-source carbs. That's a meaningful difference at mile 18.*
How it compares
Salty Carbs
✓ Dual-pathway carbs
✓ 700mg+ sodium
✓ Full electrolyte profile
✓ GI-friendly formula
✓ No artificial sweeteners
✓ Informed Sport certified
✓ Clinically-studied carb ratio
Typical Sports Drink
✗ Single carb source
✗ Usually 150–300mg sodium
✗ Partial electrolytes
✗ Often causes GI issues
✗ Often artificial sweeteners
✗ Rarely certified
✗ No research backing ratio
5 key ingredients
Who it's for
If your sessions run longer than 60 minutes, you need more than water. Salty Carbs was built for the athletes who know that proper fueling is the difference between a strong finish and hitting the wall.
High sweat rates, prolonged effort, and the need for consistent fueling without GI drama
Long-duration efforts that demand sustained carbohydrate delivery and serious electrolyte replacement
Electrolyte losses in water are easy to miss. Salty Carbs keeps sodium topped up even when you can't feel the sweat
If you've been hitting the wall or cramping late in workouts, sodium depletion is likely a major factor
Consistent carbohydrate delivery means your muscles stay fueled from start to finish, not just the first half.*
Dual-pathway absorption means less undigested carbs sitting in your gut causing nausea, cramping, and bloating mid-race.*
700mg+ sodium per serving keeps electrolytes in balance through even the sweatiest sessions and hottest race days.*
Carbs taken within 30 minutes post-exercise jumpstart glycogen replenishment, getting you ready for tomorrow's effort sooner.*
General guidelines recommend 30–60g of carbohydrates per hour of endurance exercise. Each serving provides 30g. For sessions over 90 minutes or at high intensity, aim for one serving per hour as a starting point and adjust based on your personal tolerance.*
Maltodextrin and fructose absorb through two completely independent pathways, SGLT1 and GLUT5 respectively. Using both simultaneously allows a higher total rate of carbohydrate absorption without overloading either transporter. More fuel to muscles, less undigested carbs causing GI distress.*
In large doses on its own, yes. Salty Carbs uses a 1:0.8 maltodextrin-to-fructose ratio, the same ratio used in peer-reviewed research on dual-carb endurance fueling, keeping fructose at a well-tolerated level while still benefiting from the second absorption pathway.*
Don't wait until you're depleted. Start sipping 15 minutes into your session and continue at regular intervals. Your body can only absorb carbohydrates at a fixed rate. Feeding consistently from the start prevents the deficit that causes late-race fade.*
Yes. Salty Carbs fits cleanly into the full RNWY stack. Take Extra Mile® pre-workout, Salty Carbs during the effort, and Complete Protein post-workout for a complete fueling window from start to recovery.*
Yes. All five ingredients are plant-derived. No animal products, dairy, or animal byproducts of any kind.
Ready to stop running on fumes?
Join athletes who've made the switch to Salty Carbs for fueling. More carbs absorbed. Less GI distress. Stronger finishes.*
*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.
Overall rating: 5.0 / 5 from 20 reviews.
Review topics: [].
"I can't say enough about Salty Carbs. It makes it so simple to get both carbs and electrolytes throughout your training run, and it is easy on the stomach! Plus, it takes good, but doesn't have an overly strong taste. I love every flavor, but my favorite is the Raspberry Lemonade!"
"I recently tried SaltyCarbs by RNWY and I’m honestly impressed. As someone who’s pretty active, I’m always looking for something that actually helps with hydration and energy without feeling heavy or overly sweet—and this delivered. I actually trained for multiple marathons using this, and it made a noticeable difference in my endurance and recovery. The balance of electrolytes and carbs feels just right. During long runs, my energy stayed steady, and I didn’t hit that same level of fatigue or dehydration I’ve experienced in the past. It mixes easily, tastes clean (not that artificial aftertaste you get with some products), and doesn’t upset my stomach. What I appreciate most is how simple and effective it is—no unnecessary extras, just something that works. Definitely keeping this as part of my training routine, especially for long runs and hot days. If you’re looking for a hydration + fuel combo that actually performs, SaltyCarbs is worth trying."
"Salty Carbs not only tastes good, it’s easy on the stomach and packs not only electrolytes but carbs too. It has been a game changer in my marathon training!"
"This has honestly been a game changer for my training and long runs. The carbs + electrolytes combo is exactly what I need to keep my energy up, especially on harder or longer efforts. It’s easy to drink, doesn’t mess with my stomach, and the flavor is actually really good. I’ve been reaching for it every long run lately and it’s been working really well."
"I’m really impressed with RNWY Salty Carbs. The taste is excellent across the board, but the Unflavored option is surprisingly delicious—it’s clean and easy to drink without that artificial aftertaste you find in other brands. The biggest win for me is the convenience. Being able to get my carbs and sodium in simultaneously with my hydration is a total game-changer. It’s so much better to take these in as a liquid rather than dealing with the sticky mess and digestive heaviness of gels. If you're looking for a streamlined way to fuel and hydrate at the same time, this is it."
"I've been using this product for a few months now and it has become a staple in my training and racing lineup! I used it in Berlin during a particularly hot marathon and I was so happy that I had Salty Carbs in my bottle when things got tough and I couldn't take gels any longer. It kept me fueled and hydrated until the very end and I was able to pull off a 6 minute PR!"
"Salty carbs are great for my long runs! Most gels struggle on the electrolyte side, so getting over 1g of electrolytes into 12oz of water is night and day for training. Raspberry lemonade is my go-to. This also sits better in my stomach than gels, so if you struggle with that, give salty carbs a try!"
"Hydration and carbs in one has been a game changer for marathon training."
"My favorite carbs to use before long runs as it has the perfect about of carbs and sodium. Plus the taste is VERY GOOD! By far the best product!"
"This product really fuels my engine. I don’t know what I would do without it on my long runs. The taste is great."
