Why NaK™ Bar Works:
Proven Hydration Backed
by a Controlled Scientific Study
Hydration is the foundation of equine performance, yet many horses don’t drink enough during training, travel or competition. Adequate water consumption and electrolyte replenishment are critical to maintaining optimal hydration and performance.
NaK™ Bar was created to solve that problem with an effective, natural, highly palatable electrolyte bar.
To validate its effectiveness, NaK™ Performance LLC sponsored a controlled Hydration Study designed to measure how much NaK™ Bar increases voluntary water intake in performance horses.
Robust, On-Site Study Design
The study was a structured, 16 day scientific trial conducted on four warmblood performance horses in mild to moderate training programs stalled at a private barn in Florida. The study included:
A randomized, three period crossover design.
Each horse received all three protocols (no bar, one bar, two bars) in different sequences to eliminate order effects.
Four day treatment periods with two day washouts
This ensured each horse returned to baseline before the next sequence.
Controlled diets and consistent exercise routines
Environmental monitoring
Daily temperature and humidity were recorded to ensure conditions were comparable across periods.
Accurate, standardized water measurement
Water intake was measured using calibrated digital scales and converted to liters using water’s specific gravity.
Statistical analysis (tests)
Differences in water consumption were analyzed for significance
Clear, Measurable Hydration Gains
Across all horses and all periods NaK™ Bar consistently increased water intake:
✔ One NaK™ Bar increased water consumption by 18%
“Administration of one NaK™ Bar showed an increased water intake of 20.5 ± 13.7 L (18.0%) over control…”
✔ Two NaK™ Bar increased water consumption by 27%
“Administration of two NaK™ Bar showed an increased water intake of 31 ± 13.1 L, a 27.2% increase over control (p = 0.018).”
Why NaK™ Bar Works: Sodium Drives Thirst
Horses lose about 3.1 g of sodium per liter of sweat, and sodium is the one electrolyte essentially absent from forage.
NaK™Bar delivers:
14 g of iodized salt (NaCl) per bar
Highly bioavailable electrolytes (Na+, K+, Cl, Ca, Mg)
A natural, lowsugar base horses readily consume
This sodium level is both effective and safe:
“No deleterious effects were reported. The four horses readily ate the NaK™ Bar (s) presented to them”
By providing sodium in a palatable, compact form, the bar stimulates the horse’s natural thirst response, leading to meaningful hydration.
Designed for How Horses Live and Work
The study horses:
Stayed on their normal training schedule
Continued their baseline electrolyte powder
Had freechoice access to clean water
Consumed every bar offered
This mirrors realworld conditions, making the results directly applicable to everyday horse management.
NaK™ Bar makes hydration and electrolyte supplementation convenient, natural and effective
Increases voluntary water intake
Helps maintain hydration during heat, travel and exercise
Avoids the mess and resistance of pastes
Offers a low sugar formula with natural ingredients
Provides a consistent, easy-to-feed electrolyte