Immunocal Sport® Glutathione Supplement

Immunocal Sport® Glutathione Supplement — The World's First Patented Glutathione Formula Built for Athletic Performance

Every serious athlete knows the two things that separate good performance from great performance: how hard you can train and how fast you can recover. Most sports supplements address one or the other. Immunocal Sport® is the only glutathione supplement in the world engineered to address both — simultaneously — while also protecting and strengthening the immune system that keeps you training consistently in the first place.

Built on the same clinically proven, patented Bonded Cysteine™ foundation that makes the original Immunocal® the world's most validated glutathione supplement, Immunocal Sport® adds an exclusive Nitro Boost complex specifically developed for athletic performance. The result is a sports nutrition product unlike anything else on the market — one that raises intracellular glutathione levels, maximizes nitric oxide production, accelerates muscle recovery, and keeps your immune system strong enough to handle the demands of elite training, all in a single daily pouch.

This is not a generic protein powder with a sports label slapped on it. Immunocal Sport® is a precision-engineered glutathione supplement trusted by Olympians, professional soccer players, world-record holders, and elite competitors across 27 countries — none of whom receive financial compensation to use it. They use it because it works.

The Science Behind the Immunocal Sport® Glutathione Supplement

The Bonded Cysteine™ Foundation

Immunocal Sport® contains the complete original Immunocal® formula — the patented, non-denatured whey protein isolate with Bonded Cysteine™ technology that delivers cysteine safely and efficiently into your cells, where it is converted into glutathione. This is the foundational glutathione supplement mechanism that has been validated in 90+ clinical studies, protected by 79 international patents, and listed in both the US Physicians' Desk Reference and Canada's Compendium of Pharmaceuticals and Specialties. Every performance benefit you get from the Nitro Boost complex in Immunocal Sport® is built on top of this clinically established glutathione foundation.

Nitro Boost — The Exclusive Athletic Performance Complex

What separates Immunocal Sport® from the original Immunocal® glutathione supplement is its proprietary Nitro Boost complex — a combination of four targeted performance ingredients developed specifically for the demands of athletic training and competition.

L-Citrulline — Nitric Oxide Supercharger

L-Citrulline is one of the most extensively researched performance amino acids in sports science. When absorbed, citrulline is converted to arginine in the kidneys, which then serves as the primary substrate for nitric oxide production. Nitric oxide causes vasodilation — the widening of blood vessels — which increases blood flow to working muscles, improves oxygen delivery, reduces lactic acid buildup, and extends endurance capacity. For athletes, more nitric oxide means more power output sustained over longer periods and significantly reduced fatigue during high-intensity training. The citrulline in Immunocal Sport® works synergistically with elevated glutathione levels — which protect nitric oxide from oxidative degradation — creating a performance combination that neither ingredient achieves alone.

Beet Root Extract — Natural Vasodilation Amplifier

Beet root is one of nature's most potent natural sources of dietary nitrates — compounds that the body converts directly into nitric oxide through a separate pathway from L-Citrulline. This dual-pathway nitric oxide production — through both citrulline and beet root — creates a broader, more sustained vasodilation effect than either ingredient produces independently. Beet root extract has been shown in clinical research to improve time-to-exhaustion, lower the oxygen cost of exercise, and enhance cardiovascular efficiency during endurance activity. It also delivers powerful antioxidant compounds that complement the cellular protection of the glutathione supplement base.

Tart Cherry Extract — Recovery and Inflammation Support

Tart cherry extract is backed by substantial clinical evidence for its role in reducing exercise-induced muscle damage, decreasing delayed onset muscle soreness (DOMS), and accelerating post-exercise recovery. Rich in anthocyanins — potent anti-inflammatory and antioxidant compounds — tart cherry extract works alongside the elevated glutathione levels produced by Immunocal Sport® to create a comprehensive cellular recovery environment. Less soreness, faster repair, and quicker return to full training capacity are the consistent outcomes reported by athletes who incorporate tart cherry extract into their recovery protocol.

Magnesium — The Recovery Mineral

Magnesium is involved in over 300 enzymatic reactions in the human body — including protein synthesis, muscle and nerve function, blood glucose control, and energy production. Intense training depletes magnesium stores significantly, and deficiency is directly linked to increased muscle cramping, impaired recovery, disrupted sleep, and reduced power output. The magnesium in Immunocal Sport® helps replenish what training takes away, supporting optimal muscle contraction, faster recovery, and the quality sleep that is ultimately the most critical recovery tool of all.

Who Uses the Immunocal Sport® Glutathione Supplement

Olympians, World Champions, and Elite Professional Athletes

Immunotec partners with over 100 professional athletes and sports teams across 27 countries — including Olympians and national team competitors from the United States, Canada, Mexico, and Great Britain spanning track and field, swimming, diving, rugby, soccer, skateboarding, rowing, and weightlifting. What makes this remarkable is that not a single one of these athletes receives financial compensation to use Immunotec products. They use Immunocal Sport® because they have experienced the results firsthand and choose to align their name and reputation with a product they genuinely trust.

Inter Miami CF — Lionel Messi's Club

Immunotec is the official nutrition provider of Inter Miami CF — one of the most globally recognized clubs in Major League Soccer and home to Lionel Messi, widely considered the greatest soccer player in history. Inter Miami CF chose Immunocal Sport® for its players after experiencing measurable improvements in recovery, endurance, and immune resilience across the squad. DeAndre Yedlin, Inter Miami CF defender and FIFA World Cup representative for the United States national team, is among the club's players who have benefited from the Immunocal Sport® glutathione supplement program.

Club América — Mexico's Most Decorated Football Club

Immunotec is also the official nutrition partner of Club América — Mexico's most successful and celebrated football club, with 34 titles including 13 league championships, 6 league cups, and 7 CONCACAF championships. With over 17 million social media followers worldwide, Club América represents the gold standard of Mexican football, and their players rely on Immunocal Sport® as a central part of their performance and recovery nutrition.

What Elite Athletes Are Saying

"I implemented Immunocal since returning from injury and I have found that it has helped me recover better from training sessions. Another great thing about Immunocal is that it has helped me avoid sickness. By keeping my immune system strong, Immunocal has allowed me to become more consistent with my training."

"I have never recovered so well after training, or seen such notable increases in performance with any other product on the market."

"Within a week or two of using Immunocal I was coming into sessions feeling fully recovered. The improved recovery process allowed me to complete the training necessary in the lead up to my Australian record 10,000 meters."

"Immunocal and Immunocal Booster have become the central part of my nutrition plan. I have full faith in the quality of the products to keep my immune system strong. Regardless of where in the world I am competing, I know I can rely on Immunocal products to keep me healthy and let me focus on the competition in hand."

Five Performance Benefits of the Immunocal Sport® Glutathione Supplement

Increased Strength and Muscle Mass

The combination of elevated glutathione levels — which protect muscle cells from oxidative damage during training — and the nitric oxide-driven improvements in blood flow and nutrient delivery creates optimal conditions for muscular adaptation. Immunocal Sport® has been clinically shown to support increases in muscle strength and mass when combined with regular resistance training.

Enhanced Endurance and Stamina

The dual-pathway nitric oxide production from L-Citrulline and beet root extract reduces the oxygen cost of exercise — meaning your cardiovascular system works more efficiently at the same intensity level. Combined with glutathione's role in protecting mitochondrial function, the result is measurably improved endurance capacity and the ability to sustain higher training loads over time.

Faster Recovery and Reduced Muscle Soreness

Tart cherry extract and magnesium address recovery from two angles — reducing inflammatory damage and replenishing the mineral resources that intense training depletes. Elevated glutathione levels add a third recovery dimension by neutralizing the oxidative stress that accumulates in muscle tissue during exercise. Athletes using Immunocal Sport® consistently report faster return to full training capacity between sessions.

Immune Resilience Under Training Stress

Intense training is immunosuppressive — it temporarily lowers immune function and increases vulnerability to illness. This is why elite athletes get sick at disproportionately high rates during heavy training blocks and competition periods. The Bonded Cysteine™ glutathione supplement foundation of Immunocal Sport® directly counteracts this training-induced immune suppression by keeping lymphocyte glutathione levels elevated — maintaining immune strength exactly when training demands are highest.

Banned Substance Safety — Informed Sport Certified

Every batch of Immunocal Sport® is tested and certified by Informed Sport — the world's most rigorous and respected third-party quality assurance program for sports nutrition supplements. Informed Sport certification guarantees that every single batch of this glutathione supplement is completely free from banned substances and safe for athletes competing at the Olympic level and in professional leagues worldwide. No other glutathione supplement carries this level of independent verification. For competitive athletes who cannot afford any risk in their supplement choices, Informed Sport certification is the only standard that matters.

What Is Inside the Immunocal Sport® Glutathione Supplement

Immunocal Sport® contains whey protein isolate with Bonded Cysteine™, L-Citrulline, beet root extract, tart cherry extract, and magnesium. It contains no fat, no sugar, no artificial flavors, no sweeteners, no antibiotics, no gluten, and is non-GMO. Like the original Immunocal® glutathione supplement, the whey protein base is processed using a low-temperature, patented purification method that preserves the heat-sensitive bioactive proteins responsible for its glutathione-raising effectiveness. It is Informed Sport certified, FDA GRAS approved, and holds a Natural Product Number (NPN) from Health Canada.

How to Take the Immunocal Sport® Glutathione Supplement

Preparation

Add one pouch to a shaker cup with one ounce of cold or room-temperature liquid. Seal and shake gently for 15 seconds. Add a further five ounces of liquid and shake again until fully mixed. Immunocal Sport® has a light natural fruit flavor from the beet root and tart cherry extracts, making it one of the most palatable options in the Immunocal® glutathione supplement line.

Timing for Maximum Performance Benefit

Take Immunocal Sport® either in the morning as part of your daily nutrition routine or within 30 to 60 minutes post-workout — the window during which amino acids are most efficiently absorbed for muscle repair and recovery. Never mix with hot beverages or use a steel-blade blender, as heat above 40°C (104°F) and aggressive mechanical agitation will denature the protein and reduce effectiveness.

When to Expect Results

Most athletes report noticeable improvements in recovery and energy within the first two to four weeks of consistent daily use. Meaningful increases in cellular glutathione levels — and the full performance and immune benefits that come with them — typically accumulate over 30 to 90 days of regular use.

Immunocal Sport® Glutathione Supplement — Train Like a Professional. Recover Like a Champion.

Immunocal Sport® is the only glutathione supplement in the world that combines 45 years of clinically validated immune science with a precision-engineered athletic performance complex — certified clean by Informed Sport and trusted by over 100 elite athletes and professional teams across 27 countries worldwide. Whether you are training for your first marathon, competing at the national level, or performing alongside world-class professionals, Immunocal Sport® gives you the same nutritional advantage that Olympians and professional athletes rely on every single day. Available worldwide with global shipping.