™Condition Guide
Immune Support
High-dose vitamin C, zinc, and glutathione delivered by IV provide immune support that oral supplements cannot match. A licensed Fortafid™ nurse comes to your home — same day service.
Quick answer
IV vitamin C delivers 10–50× the dose achievable orally, at 100% bioavailability. At these doses, vitamin C has documented antiviral and immune-stimulating effects. Combined with zinc, glutathione, and B vitamins, immune IV therapy provides support that no oral supplement regimen can replicate.
Key immune nutrients — IV vs. oral
| Nutrient | Immune role | IV advantage |
|---|---|---|
| Vitamin C (high-dose) | Stimulates white blood cell production, neutralizes free radicals, supports collagen synthesis for tissue repair | 5,000–25,000 mg IV vs. 500 mg oral max |
| Zinc | Essential for T-cell function, wound healing, and antiviral defense — deficiency impairs immune response | Therapeutic IV dose vs. limited oral absorption |
| Glutathione | Master antioxidant — protects immune cells from oxidative damage, supports liver detox | 600–1,200 mg IV — poor oral bioavailability |
| B-Complex Vitamins | B6 and B12 are essential for antibody production and lymphocyte proliferation | IV delivers therapeutic doses at 100% bioavailability |
| Magnesium | Regulates inflammatory response and supports over 300 enzymatic reactions including immune signaling | IV bypasses poor oral absorption (typically 30–40%) |
When to get immune IV therapy
Feeling run-down or getting sick
High-dose vitamin C and zinc at the first sign of illness can shorten duration and severity
Post-illness recovery
Replenish nutrients depleted by fever, reduced appetite, and the immune response itself
Cold and flu season prevention
Monthly immune IV maintains optimal nutrient levels for immune defense
Before travel or major events
Boost immune defenses before exposure to crowded environments or high-stress periods
Chronic stress and burnout
Stress depletes vitamin C and B vitamins — IV therapy restores immune-critical nutrients
Frequently asked questions
Does IV therapy boost the immune system?
Yes — IV therapy delivers immune-critical nutrients at doses and bioavailability that oral supplements cannot match. High-dose vitamin C (5,000–25,000 mg IV) stimulates white blood cell production and has antiviral properties. Zinc supports T-cell function. Glutathione protects immune cells from oxidative damage.
What is the difference between IV vitamin C and oral vitamin C?
The key difference is dose and bioavailability. Oral vitamin C is limited to about 500 mg per dose before causing digestive upset, and absorption decreases as dose increases. IV vitamin C bypasses the digestive system entirely, allowing doses of 5,000–25,000 mg to reach the bloodstream at 100% bioavailability. At these doses, vitamin C has documented antiviral and immune-stimulating effects that are not achievable orally.
Can IV therapy help when I am already sick?
Yes — IV therapy is effective both for prevention and acute illness. When you are already sick, high-dose vitamin C and zinc can shorten the duration and reduce severity. IV anti-nausea medication (Zofran) can help if you are experiencing nausea. Saline and electrolytes address dehydration from fever and reduced fluid intake.
How often should I get immune IV therapy?
For prevention and maintenance, monthly immune IV therapy maintains optimal nutrient levels. During cold and flu season or periods of high stress, bi-weekly infusions are common. For acute illness, a single infusion at the first sign of symptoms is most effective.
Is high-dose vitamin C IV safe?
Yes — high-dose vitamin C IV is well-tolerated by most healthy adults. All Fortafid™ practitioners are licensed RNs and NPs working under physician oversight. Clients with G6PD deficiency should not receive high-dose vitamin C IV — this is screened during your intake.
How much does immune IV therapy cost?
Fortafid™ Immune Boost IV starts at $149, including mobile delivery to your home, hotel, or office. High-dose vitamin C and glutathione add-ons are available at additional cost.
Strengthen your immune system today
A licensed Fortafid™ nurse comes to your home, hotel, or office — same day, no waiting room.
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