Running & Trail: Why 800mg Sodium is Your Pacer
Running & Trail: Why 800mg Sodium Can Be Your "Pacer"
Have you ever noticed your heart rate steadily creeping up during the final kilometers — even when your pace stays the same? That's often linked to cardiovascular drift. A natural response when fluid and electrolyte losses aren't fully replaced. When you run — especially on trails with constant changes in intensity — you lose both water and sodium through sweat. If you only drink plain water, you risk diluting your balance, making it harder for your body to retain fluid where it matters most.
Quick Answers
Cardiovascular drift is the gradual rise in heart rate at a steady pace — caused by declining blood plasma volume as you sweat. Your heart compensates by beating faster to maintain cardiac output. Sodium is the primary electrolyte that maintains blood plasma volume. Replacing sodium losses during a run directly counters cardiovascular drift and keeps your heart rate stable in the final kilometers.
When you sweat, you lose both water and sodium. Replacing fluid with plain water without replacing sodium dilutes your remaining electrolyte concentration — a condition called hyponatremia. This makes it harder for your body to retain fluid in the bloodstream where it's needed. The result is bloating, nausea, and declining performance despite drinking regularly.
Start 20–30 minutes before your run, not when you feel thirsty. Thirst lags behind dehydration — by the time you feel it, your plasma volume has already dropped. For sessions over 90 minutes, sip consistently throughout rather than drinking in large volumes infrequently. Use our Sweat Calculator to estimate your personal deficit based on distance, pace, and conditions.
Pure sodium chloride (table salt) delivers a high chloride load that can cause stomach irritation during prolonged running. Sodium citrate is an alkaline buffer — it neutralizes gastric acidity and reduces stomach sloshing under sustained aerobic effort. The 50/50 split gives you the full 800mg sodium dose without the harsh, briny taste or gut discomfort of salt-only formulas.
Yes. Mova Pure contains zero sugar and zero carbohydrates. Glycine activates the same SGLT1 intestinal absorption pathway as glucose — without any glycemic load or insulin response. This makes it fully compatible with fasted training and ketogenic protocols. How SGLT1 works without sugar →
800mg Sodium — Supporting Fluid Balance Where It Counts
Each Mova Pure serving delivers 800mg of sodium — calibrated to match average sweat sodium concentration (~926 mg/L) without going to extremes.
Hydration Efficiency: Sodium helps your body retain consumed fluids, contributing to normal hydration status during longer efforts.
Balanced, Clean Taste: By combining sea salt and sodium citrate, Mova Pure avoids the sharp, briny sting. A smoother profile that's easy to drink consistently, kilometer after kilometer.
Built for Movement: Paired with potassium, sodium plays a key role in normal muscle function and nerve signaling — essential for maintaining your rhythm on technical trails.
The Support Crew: Potassium, Magnesium & Glycine
Potassium (400mg)
Contributes to normal muscle function and nervous system function, keeping your movements fluid and efficient through sustained lateral stress and gradient changes on the trail.
Magnesium (60mg — Di-Magnesium Malate)
Contributes to normal energy-yielding metabolism and muscle function. The malate form is a direct intermediate in the Krebs cycle — supporting ATP production and lactate recycling during the repetitive loading of long descents. Zero laxative side effects unlike cheaper magnesium forms.
Glycine (1,000mg) — Sugar-Free Absorption
Glycine activates the same SGLT1 intestinal transport pathways as glucose — pulling water and minerals into your bloodstream rapidly without sugar, insulin spike, or energy crash. For trail runners who prefer fasted morning sessions or ketogenic protocols, this is the critical differentiator. No compromise on absorption speed. No compromise on metabolic stability.
The Mova Running Strategy
For sessions exceeding 90 minutes, start sipping 20–30 minutes before your run, then continue steadily throughout. Don't play catch-up — start hydrated and stay that way. Not sure how much you lose on a long trail run? Use our Sweat Calculator to get a personalized estimate.
No shortcuts. Just function for every kilometer.
Mova Pure: Engineered in Finland. Perfected in Sauna.
Keep your pacer honest. Mova Pure clean electrolytes — 800mg Sodium, 400mg Potassium, 60mg Magnesium. No sugar, no E551, free EU shipping.
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