The Runner's
Threshold Edge
Stop guessing your dosing. Use the clinical plan trusted by course record holders to increase oxygen delivery and buffer lactic acid during your hardest efforts.
Built for Elite Competition
No fillers. No proprietary blends. Trusted by elite endurance athletes, including a LOTOJA Classic course record holder.
The Runner Loading Plan
Optimized for Marathon / Half Marathon. See the full 7-phase plan for all distances and stacking options.
| Phase | Timing | Dose | Notes |
|---|---|---|---|
| Base Loading | 3 days pre-race, AM + PM | 2 servings per day | Saturates muscle tissue before taper |
| Race Eve | Evening before race | 1 serving | Final top-up; do not skip sleep for this |
| Race Morning | 60 to 90 min before gun | 1 serving | Peak nitric oxide aligns with starting pace |
| Late Race (optional) | Mile 18 to 20 for 4+ hour finish | 1 serving | Extends vasodilation through the final miles; test in training first |
What to Avoid on Race Day
- XAntibacterial mouthwash on race morning (kills the oral bacteria that convert nitrate to nitric oxide)
- XProton pump inhibitors (PPIs) within 2 hours of dosing (reduce stomach acid needed for conversion)
- XAlcohol the evening before (impairs nitric oxide synthesis)
- XHigh-nitrate foods (beets, spinach, arugula) in the 24 hours before if not part of loading plan (unpredictable nitrate stacking)
Clinical Mechanisms
Biological Data & Plan Specs
Beetroot Pro® Specs
Acute Race-Day Vasodilation & Oxygen Delivery
Patented betaine nitrate
2 scoops = 6 raw beets
Low-carb, Low-sugar
Accelerates the nitrate-to-nitrite-to-nitric-oxide pathway to reduce the oxygen cost of exercise and enhance mitochondrial efficiency.
Plan: 30-45m before starting line
Endurance360® Specs
Chronic VO2 Max Improvement & Lactic Acid Buffering
Creatine Monohydrate, Beta-Alanine, Cordyceps Mushroom
Gelatin Capsules
ATP & Cellular pH
Combines creatine for ATP regeneration with beta-alanine to buffer muscle acidity during sustained threshold efforts.
Plan: 10-14 Day Pre-Loading Phase
Training intel : Runner
Runner Articles
May 5, 2026
Beetroot Powder Side Effects: What Athletes Actually Experience (and What's Just Myth)
The complete guide to beetroot powder side effects: beeturia, GI distress, oxalate risk, nitrate interactions, and how standardized extract eliminates most issues raw beet products cause.
Apr 30, 2026
Beetroot Powder vs Ketone Ester for Oxygen Efficiency: Two Different Bets
Both beetroot powder and ketone esters claim to improve oxygen efficiency. The mechanisms are completely different, the evidence base is different, and the cost is dramatically different. Here is how to choose.
Apr 30, 2026
Beetroot Pro vs Momentous Beet: Which Beet Supplement Actually Delivers?
Both Beetroot Pro and Momentous Beet promise nitrate-driven performance. But standardized betaine nitrate and raw beet concentrate are not the same thing. Here is what the labels actually tell you.
Apr 26, 2026
Does Cordyceps Actually Work for Endurance? Mycelium vs Fruiting Body, What the Research Shows
The skeptic's guide to cordyceps for endurance athletes. What the human clinical trials actually show, the mycelium vs fruiting body debate, realistic timelines, and why the extract form matters.
Runner Race Hubs
Race-specific training, fueling, and pacing playbooks built around the actual course profile and start time.
The Ultimate VO2 Max Plan
Combine the chronic lactic-buffering of Endurance360 with the acute vasodilation of Beetroot Pro for complete physiological support.