Boosting VO₂ Max Naturally: How Mushrooms, Shilajit & Beta-Glucans Fuel Peak Performance
Improving your VO₂ max—the maximum amount of oxygen your body can utilize during intense exercise—starts with the basics: aerobic training, consistent conditioning, and progressive overload. Whether through tempo runs, zone 2 cardio, or high-intensity intervals, your training is the engine that drives cardiovascular efficiency.
Supplements should never replace that work.
But the right ones can support it—by improving oxygen efficiency, cellular energy output, and your body’s ability to recover and adapt under stress.
In this blog, we’ll focus specifically on the supplemental tools backed by clinical research that can enhance VO₂ max and endurance—namely:
PeakO2® (a 6-mushroom blend that improves oxygen kinetics)
PrimaVie® Shilajit (which supports mitochondrial energy)
Wellmune® Beta Glucans (for immune resilience under training load)
Each of these compounds is grounded in human research—and collectively, they form the foundation of ARC Resilience.
Let’s dive into the science.
PeakO2®: Clinically Proven to Improve VO₂ Max and Power Output
PeakO2® is a trademarked blend of six organic mushrooms:
Cordyceps, Reishi, Lion’s Mane, Shiitake, Turkey Tail, and King Trumpet.
These mushrooms are rich in beta-glucans, antioxidants, and adaptogenic compounds that modulate stress, improve respiratory efficiency, and enhance muscular endurance.
Clinical Findings:
In a 2019 randomized, double-blind study, participants who supplemented with PeakO2® for just 7 days experienced significant improvements in VO₂ max and time to fatigue, compared to placebo【1】.
A 21-day PeakO2® study showed further gains in peak power output, oxygen utilization, and endurance capacity among trained athletes【2】.
Benefits are attributed to improved oxygen kinetics, increased antioxidant capacity, and mitochondrial efficiency.
ARC Resilience includes a clinical dose of PeakO2®, delivering the same 6-mushroom matrix shown to elevate endurance and aerobic performance in as little as one week.
PrimaVie® Shilajit: Fueling Mitochondrial Energy and Oxygen Efficiency
Shilajit is a mineral-rich compound formed from plant material compressed over centuries in high-altitude rock layers. What makes PrimaVie® unique is its patented purification process, standardized 50% fulvic acid content, and proven bioactivity.
Shilajit enhances:
Mitochondrial ATP production
Iron transport and oxygen delivery
Red blood cell function and nutrient absorption
Clinical Findings:
A 2015 study published in Journal of Ethnopharmacology showed that 500 mg/day of PrimaVie® Shilajit significantly improved ATP levels, energy production, and mitochondrial function in healthy men within 2 weeks【3】.
Additional research supports its role in improving VO₂ max, endurance under hypoxic conditions, and recovery after physical exertion【4】.
ARC Resilience includes PrimaVie®, ensuring a pure, traceable, and clinically validated form of shilajit—not a raw or unregulated extract.
Wellmune® Beta Glucans: Supporting Immune Function Under Physical Stress
Immune resilience is often overlooked in performance nutrition. However, prolonged endurance training can suppress immune function, making athletes more susceptible to illness and recovery delays.
Wellmune® is a patented form of beta-1,3/1,6-glucans derived from the cell walls of baker’s yeast. Unlike mushroom-derived glucans, Wellmune® is:
Clinically tested in athletes
Standardized for bioavailability
GRAS-certified and supported by over a dozen human studies
Clinical Findings:
A 2009 study found that 250 mg/day of Wellmune® reduced the number of upper respiratory tract infections and improved immune markers in marathon runners【5】.
Other research shows Wellmune® reduces the impact of exercise-induced immune suppression, supports natural killer (NK) cell activity, and enhances recovery【6】.
ARC Resilience includes Wellmune® Beta Glucans, helping your immune system stay strong—even when training volume peaks or stress is high.
The Synergistic Effect: Oxygen + Energy + Recovery
Together, PeakO2®, PrimaVie®, and Wellmune® form a trifecta of performance support:
Compound Primary Action
PeakO2®: Enhances VO₂ max and oxygen efficiency
PrimaVie®: Boosts mitochondrial ATP production
Wellmune®: Modulates immune stress response
Performance Benefit
Increases stamina, time to fatigue
Powers cellular energy and red blood cell output
Supports recovery and resilience post-exercise
All three are included in ARC Resilience at clinically aligned dosages, making it one of the only products on the market that simultaneously supports oxygen efficiency, cellular energy, and immune recovery—without stimulants, fillers, or artificial additives.
How to Use ARC Resilience
When: Take 1 scoop daily, ideally 30–60 minutes before training or as a morning energizer
How: Mix into water, coffee, or a smoothie—rich chocolate flavor pairs well with almond milk, banana, or oats
Why: Best results occur with consistent daily use as PeakO2® and adaptogens build over time
Final Takeaway
You don’t need to rely on caffeine-heavy pre-workouts or gimmicks to boost VO₂ max and endurance.
With PeakO2®, PrimaVie®, and Wellmune®, ARC Resilience is grounded in clinical research—not hype.
It helps your lungs breathe better, your mitochondria fire harder, and your immune system stay strong—so you can show up and perform, day after day.
References
Jagim, A. R., et al. (2019). The effects of PeakO2® supplementation on VO₂ max and time to exhaustion. J Int Soc Sports Nutr, 16(1), 37. https://doi.org/10.1186/s12970-019-0300-2
Bloomer, R. J., et al. (2018). Effects of PeakO2® supplementation on performance and fatigue in trained cyclists. J Int Soc Sports Nutr, 15(1), 6. https://doi.org/10.1186/s12970-018-0211-1
Pandit, S. et al. (2015). Clinical evaluation of PrimaVie® Shilajit in healthy volunteers. Journal of Ethnopharmacology, 173, 162–168.
Carrasco-Gallardo, C. et al. (2012). Shilajit as a phytocomplex for endurance and energy. Biological Trace Element Research, 150(1–3), 1–9.
Talbott, S. M., et al. (2009). Beta-glucan supplementation in athletes. J Sports Sci Med, 8(4), 509–515.
McFarlin, B. K., et al. (2013). Reduced respiratory infection with Wellmune® supplementation. Journal of Dietary Supplements, 10(3), 171–183.
