Description
The world’s first patented glutathione precursor formula, now powered by Nitro Boost. Immunocal Sport takes the clinically proven foundation of original Immunocal and builds a complete performance layer on top of it — designed for anyone who pushes their body and expects it to recover.
30 individual serving pouches | Informed Sport Certified | Clean Label Project Certified | OU Kosher Dairy
Two Products Worth of Support in One Daily Serving
Most people in the performance space are managing two separate stacks — one for recovery, one for immune and antioxidant support. Immunocal Sport brings both into a single pouch.
The glutathione precursor base is identical to original Immunocal — the same Bonded Cysteine technology, the same 45 years of research, the same 79 global patents. Your body gets the cystine it needs to produce glutathione from the inside out. Everything that makes original Immunocal effective is here.
What Immunocal Sport adds on top of that is Nitro Boost — a performance complex built around three scientifically studied ingredients that address blood flow, recovery, and physical output.
What Is in the Nitro Boost Complex
L-Citrulline
L-Citrulline is an amino acid the body converts to nitric oxide — a compound that causes blood vessels to dilate. This vasodilation improves blood flow to muscles and organs, supporting exercise capacity, cardiac function, and oxygen delivery during physical activity. Better blood flow means better performance and faster recovery.*
Beet Root Extract
Beet root is one of the most studied natural sources of dietary nitrates. Nitrates enhance endurance, reduce fatigue, and promote vasodilation — improving blood vessel function during sustained physical effort. The combination of citrulline and beet root in Immunocal Sport creates a dual nitric oxide support system.*
Tart Cherry Extract
Tart cherry is exceptionally rich in anthocyanins — plant compounds with well-studied properties related to inflammation and muscle soreness. Tart cherry extract also contains naturally occurring melatonin, which supports sleep regulation and overnight recovery. For anyone who trains hard and needs to come back fresh the next day, this ingredient is doing meaningful work.*
Immunocal Sport Benefits
Optimal Recovery
Tart cherry anthocyanins help reduce inflammation and muscle soreness. Melatonin supports sleep quality and overnight recovery — because recovery happens when you rest, not just when you train.*
Sustained Energy
The citrulline and beet root blend raises nitric oxide levels, increasing oxygen and nutrient delivery to muscles during training and competition.*
Peak Performance
Pre and post-workout support delivering essential amino acids, EAAs, and BCAAs alongside the nitric oxide complex.*
Immune and Cardiovascular Health
The glutathione precursor base supports immune function and antioxidant defense while the nitro complex specifically targets cardiovascular performance.*
All-In-One Support
Immune health, detoxification, antibody production, antioxidant defense, brain health, and physical performance — addressed in a single daily serving.*
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Trusted by Elite Athletes — None of Them Paid
Immunotec partners with over 100 elite athletes and three professional sports teams worldwide — including Inter Miami and Club America — across Olympic national teams from the US, Canada, Mexico, and Great Britain. Every one of them uses Immunocal Sport by choice, not by contract. Immunotec does not pay its athlete ambassadors. That distinction says everything.
Informed Sport Certified
Immunocal Sport is Informed Sport certified — independently tested batch by batch against the complete list of substances banned in competitive sport. Whether you compete at the amateur, masters, or professional level, you can use Immunocal Sport with confidence and documentation to back it up.
How to Use Immunocal Sport
Serving Size
One pouch per day. For training days, taking two pouches — one before and one after your session — is an option based on your personal goals.
Timing
As a pre-workout take one pouch 1 to 2 hours before training or competition. As a post-workout take one pouch 30 to 60 minutes after your session to support recovery.
How to Mix
Add 1 oz of cold liquid to your shaker cup. Add one pouch of Immunocal Sport. Lid on, shake for 15 seconds. Add 5 oz more liquid. Consume within 30 minutes. Avoid hot liquids, acidic liquids, and high-powered blenders.
Note: Immunocal Sport has a different color than original Immunocal — this is completely normal and comes from the natural tart cherry and beet root ingredients in the formula.
Storage
Cool dry place at 70 to 90 degrees Fahrenheit.
Immunocal Sport FAQ
Does Immunocal Sport raise glutathione levels the same way as original Immunocal?
Yes — the glutathione precursor base is identical. Immunocal Sport supports natural glutathione production exactly the same way original Immunocal does, with the Nitro Boost performance complex added on top.
What does undenatured mean and why does it matter?
Undenatured means the protein structure is preserved in its natural form — not damaged by heat or harsh processing. Immunocal’s manufacturing process keeps the critical disulfide bonds in cysteine intact so they survive digestion and reach your cells ready to do their job. Heat and aggressive blending destroy these bonds in conventional whey proteins.
Why is Immunocal Sport a different color?
The color comes from two natural ingredients in the formula — tart cherry extract and beet root extract. It is completely normal and has no effect on the product.
Is Immunocal Sport safe for drug-tested competition?
Yes. Immunocal Sport holds full Informed Sport certification — independently tested against the complete list of banned substances recognized globally in competitive sport.
Can I use Immunocal Booster alongside Immunocal Sport?
Yes — Immunocal Booster and Immunocal Sport are fully compatible and work through complementary pathways.
Are the Nitric Oxide precursors safe for everyone?
Occasional reports suggest that nitric oxide precursors may affect symptoms in autoimmune inflammatory conditions such as Rheumatoid Arthritis. If you have an autoimmune condition, consult your healthcare professional before use.
Can pregnant or breastfeeding women use Immunocal Sport?
Immunocal Sport has not been approved for use during pregnancy or breastfeeding. Always consult your healthcare professional.
Is there a money back guarantee?
Yes. Full 30-day money back guarantee from Immunotec, less shipping and handling. Cancel your subscription at any time before your next shipment with no hassle.
For a complete guide to Immunocal and how it supports natural glutathione production, visit our Immunocal glutathione guide.
Marcus T –
I have been lifting for about twelve years and tried just about every recovery product on the market. Most of them are either loaded with artificial ingredients or they just do not deliver what they promise. A friend who competes in masters track recommended Immunocal Sport and I was skeptical — it does not look or taste like anything I was used to. But I gave it a solid 60 days before making any judgment.
The difference I noticed first was sleep. I started sleeping deeper and waking up less sore after heavy leg days. Then about three weeks in my energy during workouts just felt more consistent — not a spike like a pre-workout gives you, more like a steady tank that does not empty out. I do not crash in the afternoon anymore either which used to be a real problem for me.
I am not someone who throws five stars around easily. Immunocal Sport earned it. I use it every morning on training days and rest days both. The fact that it is Informed Sport certified matters to me because I compete occasionally and I am not putting anything in my body I cannot verify. Clean product, real results, nothing artificial. That is all I ask for.