Why Electrolytes Matter for Concussion Recovery Concussion increases hydration requirements. The metabolic stress, inflammation, and autonomic activation following concussion increase fluid turnover. The brain operates on increased fluid demand during recovery. Inadequate hydration impairs cerebral blood flow and the cellular function that recovery requires (Patricios et al., 2023). Autonomic dysregulation produces relative dehydration. The sympathetic overdrive characterizing PCS produces fluid shifts that reduce effective plasma volume even when total body water is adequate. Patients can be drinking adequate fluids yet remain functionally dehydrated. Electrolyte balance addresses the fluid distribution, not just total intake. Sodium specifically supports cerebral blood flow. The blood volume that sodium maintains directly affects cerebral perfusion. Patients with orthostatic symptoms (lightheadedness on standing, exercise intolerance) often have inadequate sodium intake. Sodium supplementation supports the blood volume and pressure regulation that orthostatic symptoms reflect. Plain water alone can dilute electrolytes. Drinking large amounts of plain water without adequate electrolytes can lower sodium concentration in blood, producing the same symptoms as dehydration. The balance between water and electrolytes matters more than total water intake. Best Overall: LMNT Recharge Electrolyte Drink Mix Website: drinklmnt.com Price: ~$45 for 30 packets (~$1.50/packet) LMNT provides 1000mg sodium, 200mg potassium, and 60mg magnesium per packet with zero sugar. The high sodium content addresses the orthostatic and autonomic symptoms common in PCS. The clean formulation (no artificial dyes, no sugar) suits patients sensitive to artificial additives. The packet format is convenient for daily use and travel. What makes it stand out: 1000mg sodium per packet (addresses autonomic needs) 200mg potassium and 60mg magnesium Zero sugar (uses stevia) No artificial dyes or sweeteners Multiple flavor options Convenient single-serving packets Refundable if not enjoyed Limitations: High sodium may be excessive for sedentary patients without orthostatic symptoms. Premium pricing per serving. Stevia taste is divisive (some patients dislike it). The flavors are intense; some patients prefer milder taste. Not suitable for patients on sodium-restricted diets without provider guidance. Best for: Patients with orthostatic symptoms (lightheadedness on standing, exercise intolerance) or those engaged in sub-symptom aerobic exercise. The high sodium specifically addresses POTS-like and PCS autonomic patterns. Best Tasting: Liquid IV Hydration Multiplier Website: liquid-iv.com Price: ~$25-30 for 16 packets (~$1.60/packet) Liquid IV provides 500-630mg sodium, 380mg potassium plus vitamin C and B vitamins in a sweeter, more palatable formulation than LMNT. The added B vitamins support energy production. The flavor is widely considered more pleasant than LMNT. Note: the sugar content (11g per packet in the original formulation) provides cellular transport but adds caloric and blood sugar considerations. What makes it stand out: 500-630mg sodium per packet (moderate dose) Added B vitamins and vitamin C Widely available at retail Multiple flavor options Sugar-free version available Pleasant taste profile Glucose helps cellular uptake of sodium Limitations: Standard version contains 11g sugar per packet. No magnesium in original formulation. Lower sodium than LMNT (less effective for severe orthostatic symptoms). Higher cost per serving than LMNT. The added vitamins may complicate timing with other supplements. Best for: Patients who find LMNT unpalatable or want added B vitamins. The pleasant taste supports daily consistency for patients struggling to stay hydrated. Best Medical Grade: Drip Drop ORS Website: dripdrop.com Price: ~$30-40 for 30 packets (~$1.10/packet) Drip Drop is a medical-grade oral rehydration solution (ORS) originally developed for dehydration treatment in clinical settings. The precise sodium-glucose ratio matches the WHO recommended formula for rehydration. For PCS patients with significant dehydration or after illness, the medical-grade formulation addresses dehydration more efficiently than sports drinks. What makes it stand out: Medical-grade ORS formulation WHO-recommended sodium-glucose ratio for rehydration 330mg sodium with sugar for cellular uptake Originally developed for clinical dehydration Multiple flavors Lower per-packet cost than LMNT Effective for acute dehydration scenarios Limitations: Sugar content (8g per packet) similar to Liquid IV concerns. Lower sodium than LMNT. The clinical positioning may overstate the difference from other electrolyte products for routine use. Taste is medicinal rather than pleasant. Originally designed for acute dehydration, not daily maintenance. Best for: Patients recovering from illness, dealing with acute dehydration episodes, or specific medical situations requiring rehydration. Less appropriate for daily maintenance than LMNT or Liquid IV. Best for Exercise: Nuun Sport Electrolyte Tablets Website: nuunlife.com Price: ~$8-10 per tube of 10 tablets (~$0.80-1.00/serving) Nuun tablets dissolve in water to provide 300mg sodium and 150mg potassium per tablet. The tablet format is portable and convenient for water bottles. The mild flavor and moderate sodium dose works well for sub-symptom aerobic exercise rather than full medical rehydration. Lower cost per serving than packet-based options. What makes it stand out: Tablet format (portable, water-bottle friendly) 300mg sodium, 150mg potassium per tablet Lower cost per serving Mild flavor Sugar-free option available Wide availability at sport retailers Tube format is travel-friendly Limitations: Lower sodium than medical-grade options (inadequate for severe orthostatic symptoms). No magnesium in standard formulation. The effervescent tablet produces gas in stomach that bothers some patients. Less concentrated than packet options. Some flavors contain artificial sweeteners. Best for: Patients engaged in sub-symptom aerobic exercise who need moderate electrolyte replacement during workouts. Also useful as daily maintenance for patients without severe autonomic symptoms. Best Budget/Customizable: Bulk Supplements Sodium Chloride + Potassium Website: bulksupplements.com Price: ~$15-25 combined for 6+ month supply For patients wanting maximum customization at minimum cost, separate purchases of pure sodium chloride, potassium chloride (with provider guidance), and magnesium glycinate provide DIY electrolyte mixing. The cost per serving is far below packet products. Allows precise dose adjustment based on individual needs. Some patients find unflavored mixing in water more palatable than flavored products. What makes it stand out: Lowest cost per serving Maximum customization (adjust each electrolyte independently) Pure ingredients (no additives) Unflavored (mix with any beverage) Bulk format provides 6-12 month supply 3rd party tested Limitations: Requires precise measuring (scale needed for accuracy). Potassium supplementation needs provider guidance (excess potassium dangerous). No convenient single-serving format. Unflavored may be less palatable. Requires effort to mix correctly. The DIY approach is not suitable for all patients. Best for: Cost-conscious patients comfortable with DIY supplementation and able to measure precisely. Also useful for patients who need specific sodium-potassium-magnesium ratios different from commercial formulations. How to Choose the Right Electrolyte Supplement Your choice depends on autonomic symptoms, taste preferences, and budget. Orthostatic symptoms or POTS-like presentation: LMNT Recharge ($45 for 30 packets) for high sodium Want pleasant taste with B vitamins: Liquid IV Hydration Multiplier ($25-30 for 16 packets) Acute dehydration or post-illness: Drip Drop ORS ($30-40 for 30 packets) Sub-symptom aerobic exercise: Nuun Sport Tablets ($8-10 per tube) LMNT for higher-intensity exercise Budget priority: Nuun Sport Tablets ($0.80-1.00/serving) Bulk Supplements DIY ($0.10-0.20/serving) Chemical sensitivities (no artificial sweeteners): LMNT Recharge (stevia only) Drip Drop (some flavors) How to Use Electrolytes for PCS Recovery 1-2 servings daily during recovery. Most patients benefit from 1 serving in morning, optionally 1 with afternoon water. Higher intake during exercise. Adjust based on response and provider guidance. Total daily fluid: 90-120 oz including electrolyte drinks. The increased hydration matters during recovery. Spread intake throughout day rather than concentrating. Watch for fluid retention. High sodium intake can produce ankle swelling or bloating in some patients. Reduce sodium if these develop. Most PCS patients with autonomic symptoms tolerate and benefit from increased sodium. Combine with adequate plain water. Electrolyte drinks supplement, not replace, plain water intake. Continue regular water consumption alongside electrolyte servings. Discuss with provider if on certain medications. ACE inhibitors, potassium-sparing diuretics, lithium, and some other medications interact with electrolyte intake. Get guidance before significant supplementation. Supporting Mobility Routine Electrolytes support hydration. These exercises support the autonomic function that affects fluid distribution. JME 155 Diaphragmatic breathing supports the autonomic regulation that affects fluid balance. 10 breaths every 60-90 minutes. JME 14 Chin tucks address cervical contribution to autonomic symptoms. 10 repetitions with 5-second holds. JME 1 Cervical rotation maintains proprioceptive function. 10 repetitions each direction. JME 150 Thoracic rotation supports breathing depth. 8 repetitions per direction. Start your 3-day free trial for autonomic-support mobility programs for concussion recovery. Common Mistakes With Electrolytes Relying on sports drinks. Gatorade and Powerade contain high sugar and artificial dyes that can trigger PCS symptoms. The electrolyte content is also inadequate. Choose dedicated electrolyte supplements. Insufficient sodium for autonomic symptoms. Patients with orthostatic intolerance often need 3-5g sodium daily. Most electrolyte products provide 500-1000mg per serving; multiple servings or higher-sodium products may be needed. Ignoring potassium balance. Sodium without potassium imbalance creates other issues. Quality electrolyte products include both. Don't focus on sodium alone. Over-hydration. Drinking excessive plain water without electrolytes can lower blood sodium. Balance intake; don't just maximize water. Stopping when symptoms improve. Hydration needs persist throughout recovery. Continue adequate intake even after orthostatic symptoms improve. How much sodium should I take daily during PCS recovery? Most autonomic specialists recommend 3-5g sodium daily for PCS patients with orthostatic symptoms. This exceeds standard dietary recommendations and requires deliberate supplementation. Patients without autonomic symptoms typically need only standard intake. Discuss with provider. Will electrolytes help my brain fog? If brain fog is partially driven by dehydration or autonomic dysfunction: yes. Adequate hydration supports cerebral blood flow. The improvement depends on whether hydration was inadequate before. Test 7-day trial with consistent electrolyte intake. Can I use electrolytes long-term? Yes. Most patients benefit from continued moderate electrolyte intake during recovery and often beyond. Excessive long-term sodium can affect blood pressure; monitor as recovery progresses. Most patients need less sodium as autonomic function returns. References Patricios, J. S., et al. (2023). Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. British Journal of Sports Medicine, 57(11), 695-711. PubMed Silverberg, N. D., et al. (2020). Management of concussion and mild traumatic brain injury: a synthesis of practice guidelines. Archives of Physical Medicine and Rehabilitation, 101(2), 382-393. PubMed