IV Therapy & Injections

High-Dose IV Vitamin C

High-concentration intravenous nutrient therapy used as a supportive, integrative part of your cancer care, coordinated by your naturopathic doctor in Ontario.

High-Dose IV Vitamin C — naturopathic care at JOSIE
High-dose IVCAdjunctive care
VirtualOntario-wide
How it works

Why intravenous, and why high dose

When vitamin C is taken orally, its absorption is strictly limited by the digestive tract, capping the concentrations that can actually reach your cells. Intravenous (IV) administration completely bypasses these digestive barriers, safely delivering high-dose vitamin C directly into your bloodstream to achieve levels impossible through oral supplementation alone.

At these elevated, clinical concentrations, vitamin C transitions into a powerful metabolic and systemic support tool for oncology care. It is thought to exert its action through targeted mechanisms, generating oxidative stress that is selectively toxic to cancer cells while remaining non-toxic to healthy cells, lowering systemic inflammation, interfering with tumor blood vessel formation, and supporting immune function by increasing specific white blood cells.

  • Bypasses the gut for full bioavailability
  • Used alongside chemotherapy and radiation, not instead of them
  • Dosing and timing built around your treatment schedule
What it is

A supportive therapy, never a substitute

High-dose IV vitamin C is an evidence-based adjunctive therapy designed to work safely alongside conventional oncology timelines, such as chemotherapy and radiation. It can be used as a supportive and integrative protocol to enhance your overall care and resilience, and it is never used in place of the care your oncology team provides.

JOSIE is a virtual naturopathic clinic, so the clinical thinking behind your protocol happens in your online appointments, where your naturopathic doctor reviews your oncology timeline, current medications, and lab results. When an infusion is appropriate, the in-person sessions take place at our partner naturopathic IV lounge in Etobicoke, Toronto.

  • An adjunctive protocol that complements chemotherapy and radiation
  • Never used in place of your oncology team's care
  • Planned virtually, then delivered at our Toronto partner IV lounge
Supportive frameworks

Where high-dose IVC fits in cancer care

Quality of life

Clinical research demonstrates that high-dose IVC is generally safe and well-tolerated, with a primary benefit of managing cancer-treatment-related side effects. It helps significantly reduce deep fatigue, pain, nausea, and appetite loss.

Supportive outcomes

Early research suggests that IVC may provide benefit for cancer outcomes, including tumor response and survival, when paired with standard treatments, particularly for advanced pancreatic, ovarian, and certain colorectal and lung cancers.

Proactive preparation

Starting protocols early helps build up nutritional reserves, manage treatment-induced depletion, and establish baseline cellular resilience before and during your regimen.

Safety screening

A G6PD blood test is required before booking, alongside careful clinical screening of general markers such as kidney function and electrolytes.

What to expect

Your protocol, individualized

Dosing and timelines are tailored to you and your oncology plan. A typical course looks like this:

  • Sessions are usually scheduled one to three times per week, depending on your custom protocol.
  • Each infusion generally lasts between one and three hours in a calm, clinical lounge setting.
  • Your naturopathic doctor reviews prerequisite labs, including a G6PD test, before any infusion is booked.
  • Physical administration happens at our Toronto partner IV lounge while your monitoring stays virtual through JOSIE.
Coordinated for you

How your in-person care is handled

Physical administration is built directly into your care at JOSIE, so the logistics are handled for you:

See the step-by-step process
  • We handle the booking and coordination with our Toronto partner clinic on your behalf.
  • Your virtual appointments transition smoothly into in-person IV lounge care when an infusion is appropriate.

Common questions

About high-dose iv vitamin c

About the clinic

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Ready to optimize your treatment plan with targeted, data-driven support?

True vitality means giving your body exactly what it needs, precisely where it can use it best. Let's look at your health data virtually, map out your needs, and seamlessly coordinate your advanced in-person therapies.

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